Four friends (Bradley Cooper, Ed Helms, Zach Galifianakis and Justin Bartha) celebrate the last moments of bachelorhood for one of them by taking a trip to Las Vegas. When they wake up the next morning with no memory of what happened the night before and one of them is missing, they have to follow clues to retrace their steps. Also with Heather Graham, Ken Jeong, Sasha Barrese, Bryan Callen, Rachael Harris, Jeffrey Tambor and Mike Tyson. Directed by Todd Phillips. [1:39]

SEX/NUDITY 10 - We see a photo of a man standing in an elevator and a woman is performing oral sex on him (we see her bare buttocks and his penis). A fully nude man jumps out of the trunk of a car when it is opened and during an attack on three other men his bare buttocks, back, chest, abdomen, legs and genitals are visible.
► A woman pulls her top down and off her shoulder to reveal her bare breast (she nurses her infant). A man urinates in a swimming pool (we hear and see the trickle and his scrotum is also visible). Women wear bikinis while poolside and cleavage, bare abdomens, backs, legs and buttocks are visible. A man wears a T-shirt and a jockstrap and his bare buttocks are shown a couple of times (his genitals are covered). A woman wears a low-cut top and shorts that reveals cleavage, bare abdomen and bare legs. An elderly man is given a physical exam by a doctor, we see the man's bare chest, back and buttocks and the doctor tells him to cough several times (the doctor sits behind him wearing a rubber glove). We see a bare-chested man wearing boxer shorts. Four men dress on the side of the road (we see them in underwear and bare-chested).
► An elevator door opens, inside the elevator a man stands up and a woman adjusts her dress (it is implied that he has been performing oral sex on her). A man uses an infant's hand to simulate masturbation a couple of times. A man thrusts his hips toward the backside of a tiger implying sex (he is clothed). A dog licks a man on the mouth and the man opens and closes his lips as if he is kissing back.
► We see a photo of men with a lap dancer (the women's bare breasts and buttocks are visible). We see a photo of a man holding a woman's clothed breast. We see a photo of men with exotic dancers (bare abdomens, cleavage and buttocks are visible). We see a photo of men kissing each other. We see a photo of a woman standing with her foot on a man's shoulder and he is kneeling, looking up her skirt. A man holds a magazine with a bikini-clad woman on the cover.
► A man finds a used condom in a car, he throws it and it lands on the driver, who flinches and swerves.
► A man jumps and yells when a tailor takes his inseam measurement and makes a remark about his proximity to his genitals. We see an inflated sex doll floating in a bathtub.
► A man says, "It would be so cool if I could breastfeed." A man talks about his soon-to-be fiancée having sex with another man while they were on vacation together. A man talks about masturbating on a plane. A man makes reference to "dry humping and grinding" on-stage. A man sings a sexually suggestive song at a wedding reception. A woman makes a crude sexual remark to a man. A man makes a sexually suggestive remark and a sexual hand gesture. A man comments on "looking for strippers and cocaine." A man says, "Don't text me, it's gay." We see a sign that reads "Nude Daily" and advertises a strip club. A man tells a woman that she "has an amazing rack." A man makes a comment about thinking that another man was going to eat his genitals. There are several references to Las Vegas as "Sin City," and "What happens in Vegas stays in Vegas" is mentioned several times.

VIOLENCE/GORE 7 - A fully nude man jumps out of the trunk of a car screaming and swinging a crowbar, striking three men hard (we see one with a bloody face and mouth). Two men with baseball bats break the windows of a car, three men inside the car yell and the driver tries to get away; one of the men with a bat pulls a gun, the car speeds over his foot, he falls to the ground and groans, and he fires his gun shooting another man in the shoulder.
► A man with a pair of pliers pulls one of his own teeth out (we see a lot of blood on and in his mouth). A man is punched hard in the face and falls to the floor unconscious. A man is punched in the stomach.
► A man is tasered in the neck (he falls to the floor and screams), another man is tasered in the crotch by a young girl and a third is tasered in the face by a young boy. A man tackles another man to the ground. A man kicks another man in the groin.
► A tiger in the backseat of a car growls, three men in the front seat panic, the driver swerves into traffic and stops, and the men get out of the car and slam the door (we see the tiger eating the upholstery). A tiger lunges at man and roars. A car slams into the side of another car and pushes it into a pole and the three men inside the car are pulled out through a window by another man.
► Police with guns drawn come into a hotel room, and they yell at three men who yell back at them. A man cuts his hand deeply using a knife, three other men recoil as he does this and he suggests that they perform a "blood brother" pact (we do not see blood and the other men do not participate). A man kicks a telephone out of a boy's hand. A man opens a car door and strikes an infant in a carrier (we hear a thud and the baby crying).
► Three men leave an infant in a car alone. A man driving on a highway pulls over in front of a truck, swerves back across lanes and nearly hits another car. A man driving a car drives onto and along a crowded sidewalk and people scatter.
► A man has a tooth missing (we see a space and blood on his mouth). We see a man with a bloody lip. A man has blood on his neck after having been scratched by a tiger.
► Three men wake up in a hotel room and it is a shambles: we see a large smoldering hole in a chair, and furniture and items are overturned and broken. A man lies on the floor sleeping (he presumably fell down there after drinking too much). A woman falls out of a chair and onto the floor (she moans and seems to be hurt, but is OK). An infant is found crying in a hotel room closet. We see a photo of a man shooting a gun into the air.
► A man vomits at a dining table (we see goo, hear him gag, and he gags again a little later). A man vomits on the trunk of a car (we see splatter and hear a gag). We see a photo of a man vomiting. A man urinates in a toilet (we hear the trickle and see the stream), he turns to see a tiger in the room, he continues urinating on the floor, and then runs out. A man urinates in a swimming pool (we hear and see the trickle). A man eats a partially eaten piece of pizza that he finds under a sofa cushion. We see a photo of a man having his belly button pierced.
► A man makes a sexually suggestive threat toward another man. A man threatens to kill three men. A man has a severe sunburn and complains of his skin hurting. A man and a woman argue and yell at each other. A man talks about a tiger eating a man. A man talks about his soon-to-be fiancée beating him. A man implies that he has been convicted of some kind of assault or molestation of children (he's not allowed within a certain number of feet from a school). A doctor says that a man had a concussion. A man says that after marriage "You start dying every day." A man makes a comment about hitting an old man in public.
► Three men are upset when they realize that their friend is missing. Three men are handcuffed together by police officers.

LANGUAGE 10 - About 78 F-words and its derivatives, 26 sexual references, 2 obscene hand gestures (one delivered by a young girl), 44 scatological terms, 18 anatomical terms, 20 mild obscenities, 3 derogatory terms for homosexuals, name-calling (retard, idiot, bad person, loser, fat, tweeker, moron, dumb, stupid, frigid), 8 religious profanities, 17 religious exclamations.

SUBSTANCE USE - We see a photo of a man snorting cocaine, a man confesses to putting a drug in drinks he served, we are told that a man had a high level of Ruffelin in his blood, a man comments on "looking for strippers and cocaine," and a man talks about taking numerous Ecstasy pills every day. Four men drink beer, four men drink shots of alcohol in a several scenes, we see glasses partially filled with alcohol scattered around a room, people drink alcohol at a reception, people gambling in a casino are shown drinking alcohol, two men drink shots of alcohol, and a man, while drinking beer, asks to take a turn driving a car and says he drives really well when he's drunk. A tiger is given a drug-laced steak (we hear it moan and fall on the floor).

DISCUSSION TOPICS - Bachelor parties, marriage, dating, relationships, trust, love, counting cards, spousal abuse, lying, Ruffelin, the Holocaust, Holocaust survivors, sexually transmitted diseases, recklessness, drug dealing, gambling.

MESSAGE - What happens while one is under the influence of mind altering chemicals can change one's life in a profound way.