Continuity: When the sisters are at the baseball game and Katherine Heigl is eating french-fries there is a shot that shows her taking a bite of the french-fry but when the shot changes she has a whole fry in her hand.

Continuity: When Jane is tying George's tie, the part around his collar goes from being seam-side out to in to out again between camera angles.

Audio problem: Right at the start of the movie when Jane meets up with her friend on the street, her friend says something like, "Let's go", but her mouth doesn't move.

Continuity: In the final scene of the movie when Jane gets married on the beach, you see guests arriving and Tess is handing out programs. She hands a program to a blond girl with a brown polka dot dress. In the next scene, we see Tess taking to George and the same woman arrives again and Tess hands her a program again.

Continuity: Kevin and Jane are performing Benny and the Jets on stage. There are two blonds in the crowd, but the one on the right sometimes waves a cell phone or a glass of water, depending on the shot.