Continuity mistake: When they are playing hockey, and they win with 1-0 you can see the team celebrate. In the background you can see a scoreboard that says 4-1.
Revealing mistake: When Dennis gets frustrated with the contraceptive foam and throws it aside, it is obvious that a machine is at the bottom of the screen to make all the foam squirt out, since it sprays from a different location than from where the cannister was thrown.
Continuity mistake: When Steve and Doug first go to the Roxbury, the bouncer tells them that they can't go in. Then, Richard pulls up in his yellow sports car, and goes into the club, leaving Steve and Doug behind. As Steve and Doug walk to the back of the line, you can see Richard's car parked about 20 feet away from the entrance to the club. Nobody moved it. How did it get there? (00:06:15 - 00:06:40)
Revealing mistake: When Angus is chasing his Mum, Sally, and Dorian in the helicopter you can see through the windsheild of the helicopter that the road is blocked off with orange cones and police cones when earlier there was traffic on the road.
Revealing mistake: At the fund raiser for the aquarium, a journalist interviews Max with a tape recorder but you can see that it is not running because the wheels inside are still. (00:32:05)
Visible crew/equipment: When Steve rejects Brad Conway's new book and Brad says "what is it exactly?" there is a boom mic visible. (00:09:50)
Continuity mistake: When Tony kills the first fat guy, the fat guy falls back in his chair. Yet after Tony kills the other fat guy the first fat guy is back upright in his chair.
Continuity mistake: In the locker room scene, Remer and Joe are both naked. When Remer goes to pull Squeak out the drawer, you see him put a robe on, but you also see him wearing underwear. It wouldn't be possible to put on underwear in about 1/2 a second.
Continuity mistake: In the scene on the Strip where Gonzo is vomiting out of the car and yelling abuse at the couple in the adjacent car, he vomits on the other car's window. After this, no vomit is visible on the window in shots from inside the other car. When shot from outside, the vomit is still there.
Continuity mistake: Toward the beginning when Philip Seymour Hoffman gets on the elevator with Lara Flynn Boyle, his tie is twisted all around but when he gets off, the tie has been fixed. He couldn't have fixed it because he was carrying two bags of groceries.
Continuity mistake: When Garrett is jumping on the bobbing things, we look down on him from above. He has one more thing to jump on before he reaches the other side. Then we see him from a different perspective and he has to jump 5 more.
Plot hole: While planting the suicide gear in the bathroom before Buckley comes in, Cooper tells Josh to tie the rope into a noose as they go to hide in the shower. Josh replies that he doesn't even know how to tie a noose. He must be a quick study, because in the 45 seconds or so that it would have taken Buckley to relieve himself and wash his hands, Josh has tied a perfect noose. (01:03:55)
Continuity mistake: When Jennifer Lopez sits on a bed in the hospital, she is talking to someone on the other side of the room. When the camera points towards Jennifer the sheets of her bed are a little bit messy; when the camera returns to Jennifer in the next shot her bed is made up.
Continuity mistake: In the scene when George and Nina almost sleep together the phone rings and George answers it, he gets out of bed and one of his top buttons is done up; the next scene none of the buttons are done up.
Continuity mistake: Early in the film before he learns of Ned's death, Jackie says that there are 52 people living in the village, but once he learns of Ned's death, he still says that the winnings will be split into shares of 52.
Other mistake: Wouldn't flying out of the water with the unconscious Z in his arms be kind of tricky for Cutter, as his wings would be soaked?
Continuity mistake: There is a scene where Jack Stanton is campaigning in Manchester, New Hampshire. He is shown talking with a counter clerk in a "Krispy Kremes" donut shop. There is no Krispy Kreme shop in Manchester, or even in New Hampshire. This is a southern chain, even though its donuts are now distributed throughout the U.S.
Continuity mistake: When Andie MacDowell is taking a taxi to the airport, you can clearly see her lips say "Kennedy" while the voice comes out as "LaGuardia" as she's telling the driver where she wants to go.
Continuity mistake: On the river, her lover has a cigarette, then there's a cut to Hela's mother, and when we see her lover again, the cigarette is gone.
Continuity mistake: In the scene where Grace arrives home and places her handbag on the counter in an anteroom the bag disappears in the next shot.