Continuity mistake: During the middle of the film where the music is that song "Good Girls Don't But I Do", there is a selection of shots of the guys dressed as girls in which they are wearing clothing that they don't actually put on towards the end of the film (Adina in the tight brownish pants and pink shirt, Roberta in the denim dress, Daisy in the red dress and sweater). That day Adina was actually wearing that green shirt with the ruffles.
Other mistake: When Barry Watson gets up to take a shower his wig easily comes off but later with the dildo fight, Barry Watson runs out the door and then Michael Rosenbaum throws the long purple dildo and hits Barry in the back of the head and he flips over and the wig stays on. After the shower scene all three of them never seem to have trouble with their wigs afterward.
Continuity mistake: At the end of the Powder Puff football game, the announcer says that the play will be the last play of the game, which is why it's so amazing that the DOGs win in the last seconds - but the score board that counts to 14 says it is only the third quarter. Also, it says that they have 10 yards to go, and Patty ran a lot farther than 10 yards to score the touch down.
Continuity mistake: The first night the boys become girls, they go to the all trim party and Adina goes off to find the tape in his "old" room. When he gets there, he's hassled by Jimmy. When Jimmy takes off his robe, (when he's blocking the door), they have 2 different angles, and the one facing Jimmy, you can tell that Adina is trying not to laugh, but the other one "she's" perfectly disgusted.