Continuity mistake: When Ann meets Kong on NYC street, the camera flashes back and forth between them. When it shows Kong, he is surrounded by snow, but when it shows Ann, the street doesn't have so much as a snowflake.
Continuity mistake: Look at the dirt when Herbie backs away from the nose of the newer Beetle, between the races out in the desert. Although Herbie drove straight up to the newer Beetle, tire marks can be seen where the crew moved the car back and forth to get him lined up.
Factual error: There is a brief shot of a couple driving through the streets near Eatonville, Florida. In the background a mountain is visible. There are no mountains in Florida.
Continuity mistake: After his father's funeral, when Drew turns on the ignition and in following shots, the leather band that he wears on his right wrist (not the watch) is clasped with its strap facing his thumb, yet when he passes the sign for 60B, the band goes round the opposite way. Then, when he listens to The Hombres the leather band is flipped back, but when he picks up Global Business Today magazine it's switched yet again, and so on. (01:43:00)
Visible crew/equipment: When Jimmy Fallon and Drew Barrymore are taking their seats after the guy yells peanuts and crackerjacks, if you look carefully you can see some of the seats behind are actually filled with mannequins dressed with clothing. Some of them don't even have arms. (00:38:00 - 00:41:00)
Other mistake: When Sarah is at her Aunt Mitzi's house looking at the yearbook picture of Beau Burroughs, Beau's name appears on the top of the list, yet his picture is farthest to the right in a row of pictures. Yearbooks list names with the top name being on the left, and the last name on the right.
Audio problem: In the scene where Todd and Jeremy are in the bedroom together and Todd is lying on top of Jeremy asking to play "tummysticks", - right before Sen Clary is about to come in and Jeremy begins to panic, watch Jeremy as he's lying on the bed talking. You hear him say about three sentences, but see his mouth move for about one from the left side view of his mouth.
Factual error: One of Angel's lyrics (in "Today For You, Tomorrow For Me) refers to the movie "Thelma and Louise." Rent (the movie) is set in 1989-90. "Thelma and Louise" was released in 1991. This was caused when they did the move from Broadway to the screen. The stage show did not specify the year. So when they adapted the stage show to the movie, they didn't check the references. Plus it just sounds cool. (00:28:25)
Continuity mistake: When Jack is asking Isabel out on a date as they're standing by their trailers, he's very excited and walking backwards towards his trailer. His bicycle is behind him and it looks like he's just about to trip over it. When the camera cuts back to him, he's closer his trailer door and hasn't fallen over the bicycle, but it's not visible behind him anymore either.