My Best Friend's Girl (2008)

Continuity mistake: Near the beginning of the movie when Alexis is getting ready for her first date with Tank, her roommate is holding a cheetah print shirt. The shot changes and suddenly Alexis is wearing it, even though she has not had time to put it on. She is also holding a drink in her hand, but she never puts it down. (Although this is explained on the DVD's Deleted Scenes, it is still a mistake.)

Professor Turner: See I always knew your mom was the best it was ever going to get for me. And I never asked the more important question which is, was I the best it was ever going to get for her?