Step Up 2: The Streets (2008)

Audio problem: When Chase pulls out the key to MSA, you hear the sound of many keys clanging together. However, if you look closely, there is only one key on the ring.

Continuity mistake: At the end of the movie in the scene where Moose and Sophie kiss, Moose's hat keeps changing forward to backward from shot to shot.

Continuity mistake: In the last dance scene, in the rain, when the men are starting dancing alone, you see Smiley with a T-shirt (the one with the red hat). However, a few seconds after, you see him wearing a white sweater and it keeps shifting between shots. (01:26:25 - 01:27:00)

Chase Collins: She has more talent, more conviction than anyone else I know.

Chase Collins: Andie... Come 'ere.
Andie: You should really wait your turn... ooooh.
Chase Collins: Couldn't.
Andie: I didn't know you could Salsa?
Chase Collins: There's a lot you don't know about me, Andie.
Andie: Which is surprising, considering how much you talk about yourself.
Chase Collins: Ooooh.

Moose: Yeah, we're her crew! We're getting ready to battle at the streets.
Felicia: What street? Sesame Street?

Question: What is the relationship between Andie and Tyler Gage? I first thought that Andie was the other foster kid from the first film, but shes not. Are they brother and sister? Thanks.