A young couple (Steve Zahn and Milla Jovovich) on their honeymoon in Hawaii find themselves paired up with an adventurous couple (Timothy Olyphant and Kiele Sanchez) and discover that psychopaths are stalking and murdering tourists. Unsure of whether to stay or run, both couples begin to doubt their companions. Also with Marley Shelton and Chris Hemsworth. Directed by David Twohy. [1:37]

SEX/NUDITY 6 - While standing in a grocery store, in the company of a man and a woman, a woman offers to perform oral sex on a man, and he brushes off her offer.
► A nude man, swimming with water up to the tops of his shoulders, and a nude woman, lying on a float, kiss; their bodies do not touch, and her bare side and the side of her buttocks are visible.
► A woman tells a man that he is a "man in full" and they embrace in a passionate kiss. A woman and a man kiss. A man and a woman kiss in the background, over the body of a dead goat. A man sits next to a woman and kisses her shoulder and elbow. A man and a woman, both covered in blood, embrace in a loving hug. Two women, one wearing a bikini, share a friendly embrace.
► A man pulls a garter off a bride, exposing her upper thigh. A woman, not wearing a seatbelt, lies with her head on the lap of a man while he drives a car. A man and woman hold hands.
► A woman confides in another woman about her first time with a man, when she was a young girl and he was much older and explains how she was prepared to have sexual contact with him; she describes how they were actively involved in "outercourse" and then abruptly stopped. A woman tells another woman about a preacher who had condemned sex out of marriage and that he was caught in an extramarital affair with a transvestite prostitute. A man jokes about finding the masturbatory catalog of another man, which included men wearing Speedos. A woman describes how attractive a man is, saying that his lips are "sexy." A man asks another man what "shake the bush" means. A man says in a toast that he hopes that a man and a woman make their honeymoon "something to remember." A woman says, "I basically hooked them up," in reference to a man and a woman first becoming a couple. A woman confides in another woman that she and her fiancé are having a hard time getting pregnant, but wants to have five children. A man and a woman discuss their love for one another. A man, blood-covered and shirtless, proposes to a woman.
► A woman wearing a bikini shouts, "Stop groping me!" as police handcuff her. A shirtless man's bare buttocks are shown as he takes off his pants and dives into a pool. A nude woman, lying on her stomach, is shown from the side; her buttocks and the side of her bare breast is shown. A topless woman's back is shown as she dances, looking in a mirror. A man and woman invite a woman to join them in swimming in the nude; the woman obliges and takes off her shirt and pants off screen, and dives into the water (her bare back is shown). The bare back of a woman is shown as she puts on her bra and shirt. We see the top of a woman's thong-style underpants. A woman wearing a bikini top and a man whose chest has a tattoo reading, "Do Not Revive" are shown. A woman wearing a bikini top and skirt and a shirtless man are shown. A still photo of a woman wearing a bikini is shown. A man is shown taking off his shirt. Women are shown wearing short dresses and short shorts (bare legs are shown), low-cut tops (cleavage is seen) and short shirts (bare abdomens are revealed). A woman is shown wearing a shirt that exposes her bare abdomen and cleavage. Three bare-chested men and a woman in a bikini top are shown tossing a football on the beach.
► Behind a store counter, multiple boxes of condoms are displayed.

VIOLENCE/GORE 9 - A man and a woman stand over a dead body, and the woman is shown cutting off the dead man's fingers (she drops the detached, bloodied fingers, into a body of water) and stealing his valuables; a man, using pliers, pulls out the dead man's teeth and his mouth is bloodied. A man jumps on another man, knocking him to the ground, and he cuts the hand of the man on the ground in half -- his hand is shown bloodied, and his middle and fourth finger are shown separated down to the wrist.
► A man in a helicopter demands that a woman identify which man on the ground to shoot; the woman identifies the man, the gunman fires a shot hitting the man in the head, and knocking him to the ground and blood erupts from the wound. A man shoots another man in the back of the head, the bullet is shown exiting the man's eye, blood pours from the wound and the man falls to the ground.
► A man holds a gun at another man and fires a shot: the bullet hits the man, blood erupts and the man falls into water (the water becomes red with blood). A man shoots a man, and the force of the bullet causes the victim to spin around, falling into water (the water becomes red as a woman looks on). A man pulls out a gun and shoots three men point-blank and one man in the back of the head as he attempts to run away (as the men are being shot, they fall to the ground, blood pouring out of the bullet holes).
► A woman tackles another woman, knocking an axe out of her hand, and one woman attempts to stab the other: the knife digs into the woman's leg, she grasps the handle and pulls it out (blood pours from wound), she attempts to crawl away, and she wields the blood-covered knife. A woman stabs a man in the hand with a knife, pinning his hand to the ground (the man is shown to be in pain); the man then violently pulls the knife out of his hand, blood bubbles from the wound and he tosses the bloodied knife at the woman.
► A man, covered in blood, touches his skull, to reveal that he had been shot in the head and now has a small flap of his scalp hanging from his head; he puts on a hat and wraps his head with a rag. A man climbing over a cliff attempts to grab the ankle of a woman and drag her over the cliff; she kicks at the man's face, and the man fires five shots from a handgun hitting her hand. A man fires three shots at a woman, but misses. A blood-covered man is shown lying on the ground, and another man, also covered in blood, straddles him, holding a gun to the man's chin (the man shouts for him to pull the trigger).
► A woman slams another woman's head into a rock, and repeatedly kicks her in the stomach. A woman spins another woman off a cliff, plummeting her into the water below. A man tackles another man to the ground and holds an axe to the man's face. Police in helicopters point guns at people on the ground, demanding they get down. A woman runs at another woman with a knife. A woman drops to the ground as she climbs down a rope; she appears panicked, covered in blood and crying that she had been shot in the hand and that she was being chased by someone trying to kill her. A woman holding an axe runs from another woman in a panic. A man throws an axe at another man, and the man catches it.
► A man carries a dead goat, blood covering his arms and shirt, and he throws the dead bloodied goat on the ground; a woman says she will butcher it and as she cuts open the goat's stomach, she begins to describe how to disembowel an animal, and she then sticks her hands inside the animal's stomach and pulls the organs out. A woman cuts the skin off a dead animal. A man shakes a small container and bloodied teeth fall out. A woman washes off a bloody knife in a stream, and blood fills the water.
► A man, his shirt soaked in blood, races through the forest, holding an axe and a knife. A man pantomimes shooting another man. A woman grabs an axe and runs to the woods.
► A woman and a man are handcuffed, and the woman wrestles against the police, causing them to have to pick her up (she is kicking and shouting at them). A woman kicks a man in the head, knocking him to the ground. A man assembles a large hunting bow and stalks through the forest with another man holding an axe.
► A man and a woman shout at one another, and then hold hands. A man shouts at a woman. A woman shouts that she feels the whole world is spitting in her face. A woman tells a man that she is in the company of murderers and that the man needs to call the police and have them arrested. A man waves a knife around after stating that he always brings it on an airplane. A newspaper headline reads: "COUPLE BUTCHERED" and features a picture of two body bags. Two men discuss a recent murder, saying, "Who did the killin'?" A woman jokes that a man is very hard to kill. A news report is shown, and a man reads aloud the details of the story about two people had been murdered. A group of adults discuss a murder. A man says he would have killed himself if given the chance. A man asks another man how many people he had murdered. A woman tells another woman about her boyfriend murdering a neighborhood dog, leaving it hanging from a tree for her to find, with pantyhose still around its neck, and then threatening her life if she told anyone. A man tells another man "people die here all the time," and he lists the multiple ways people could die, including falling and slipping on a rock. A woman jokes that men are happiest when they are hunting something they cannot catch, implying hunting humans and committing murder. A man jokes that he and his girlfriend are murderers and could be called "the gruesome twosome." A man shows another man and a woman a large scar on the back of his head and discusses how he received it after being shot, and saying that "gray Jell-O" flew everywhere and he had to have his skull reconstructed. A man says that if you wait for emergencies to happen, you will already be dead, and talks about how he survived a plane crash that killed 124 people. A man talks about the time he fought and killed a shark. A woman tells another woman about her parents getting divorced after they got tired of beating each other up. A man looks at a bottle of alcohol with a worm in it and ponders, "I wonder if they kill him first?"
► A man riding a helicopter fakes that he is falling out and laughs that it scared the woman he is with. A man accidentally steers the side of his car into a large shrub, causing a woman who had previously had her feet hanging out the side to be startled. A man tackles another man, puts the man in a headlock and rubs his head in a joking fashion. A woman playfully hits a man. A woman jokingly shoves a man. A man and a woman look over the side of a steep cliff, and both appear frightened.
► A man tells a man and a woman that he needs to "shake the snake," steps a few feet away and turns his back to the two; trickling sounds are heard as he continues to talk. A man tells a woman to "pretend to pee"; she responds that she actually has to, and the man stands next to her as she squats and sounds of urination are heard while another man and a woman tell them to "shake the bush." A woman spits in the face of a policeman. A man and a woman, both covered in blood, embrace in a loving hug. A man, blood-covered and shirtless, proposes to a woman.

LANGUAGE 7 - About 26 F-words and its derivatives, 3 sexual references, 21 scatological terms, 10 anatomical terms, 15 mild obscenities, name-calling (crazy, hotwheels, Jedi, foolish, desparados, crooked, risky, dumb), a man jokes that another man should "stay in the kitchen with the lady folk," 2 religious profanities, 8 religious exclamations.

SUBSTANCE USE - A man puts crystal meth into a crystal meth pipe, lights and smokes it and offers the pipe to a woman who takes the pipe, a woman is shown lighting a marijuana cigarette, a woman lights a marijuana cigarette and offers it to another woman who turns it down, a man says that he has a friend with a crystal meth problem and he shows what appears to be wrappers for drugs saying that he has found them throughout their trip, and a man acknowledges that a man is exhibiting physical signs of drug use. People are shown toasting with champagne, a man is shown drinking a beer, a man takes a swig from a bottle of liquor, and a man takes a few drinks from a bottle of liquor and drops the bottle into the ocean. A man uses slang to describe smoking a cigarette.

DISCUSSION TOPICS - Guns, violence, premarital sex, marriage, honeymooning, murder, friendship.

MESSAGE - You never know whom to trust, and you can never be too careful.