Continuity mistake: At the start of the movie, the guys are in an LTD chasing a Greyhound bus so Tom Cruise can get on. They pull ahead of the bus and pull over to stop. The bus stops really close to them almost hitting the LTD. In the next scene they get out of the car and have to walk about 20 feet back to the bus. (00:01:35)
Continuity mistake: During the first conversation Tom has with his uncle at the bar, the level of the beer rises and falls several times. (00:05:00)
Other mistake: When Brian takes a picture of his friend Doug on the boat, the picture shows Doug in a different position than that of when the picture was taken. (01:21:30)
Continuity mistake: As Tom Cruise and Elisabeth Shue are walking on the beach on their first date, they walk towards the camera, and you see the shadow of the camera crew very clearly.
Continuity mistake: Tom Cruise's hair changes from long to short to long to short in some of the early scenes.
Continuity mistake: When Tom Cruise enters the movie theatre, there's a movie written on the lights. When he leaves it, the name on the lights has changed.
Continuity mistake: In one of the scenes where Tom is throwing the bottles around, he throws up a spirit bottle, grabs it behind his back, and then it is a wine bottle.
Other mistake: When Brian & Doug are singing and walking drunk though the city, they come to a subway which Doug falls down. When Doug lands from the fall there is some water next to him but in the next scene the water has vanished.
Continuity mistake: When Brian is asked what he wants to do with his life, he raises a beer and replies "Become a rich man", the angle swaps and his arm is down and the beer gone.
Continuity mistake: Elizabeth's character, Jordan, meets Brian on one day. Then the very next day (looks to be around noon or so) she comes to thank him for helping out yesterday. That evening, she and Brian go with Doug and Kerry to a club where she answers Kerry's question of "How long have you known him?" by saying "About 10 hours."
Continuity mistake: While kissing on the beach, Jordan's arms are around Brian's head. Then she lowers them, but just a frame later, from a new angle, they are around his neck again.
Continuity mistake: Brian meets Doug, who smashes an egg and pours it inside a drink. When the angle changes, the beer bottle changes level, moves away from the glass, and a Tabasco sauce bottle disappears.
Continuity mistake: Brian and Doug are arguing in Jamaica, and Doug boasts about what a womanizer he is. Then the straw on his glass starts moving around between shots.
Continuity mistake: While talking about who makes the mini umbrellas, Brian says, "My life is all night with a few daylight hours", then lowers his head. When the angle changes his head is up-straight and he's lowering it again.
Continuity mistake: Brian fills up a glass but, when the angle changes, two glasses appear filled up. (Now that's a good barman.
Continuity mistake: Brian and Doug are arguing in Jamaica. Brian says, "listen to the philosopher" while holding the glass with his right hand and leaving it on the counter. When the angle changes, the glass is in his opposite hand at chest level.
Continuity mistake: Brian arrives at NYC and turns his head at a man picking up after his dog, then from the opposite angle he turns his head, but what he leaves behind has nothing to do with the previous scenery.
Continuity mistake: The first night Brian and Doug juggle in sync, from the front angle there's bottles, straws and a glass filled with ice in front of Doug. From the angle behind they're all gone. This keeps changing back and forth.
Continuity mistake: When Doug threatens Brian with a broken bottle, it keeps turning around depending on the shot.
Continuity mistake: Brian is serving a beer in NY and a man says he's rented his flat. First he holds a beer, but from the next angle the hand is away from the glass.
