Step Up/YMMV

And the Fandom Rejoiced: When it was announced Alyson Stoner was returning for the third movie
Cliché Storm: 3D's plot is basically every low-budged sports/competition convention thrown in, complete with the two rival team's lead dancers being former friends that had a falling out.
Complete Monster: PJ the gangster who kills Skinny. He's never really fleshed out but he probably is.
Ear Worm
Sequelitis: Averted, Step Up 2: The Streets was better recived by critics for having a better plot and better dancing than the first movie. Step Up 3D, despite having a more Troperiffic plot, was even more well recieved.
They Wasted a Perfectly Good Plot: 3D features the return of Camille Gage, Tyler's sister. However this is never mentioned at all. They could have had her feel like she's in his shadow because he's a famous dancer. They also could have had some sort of flashback featuring the start of her friendship Moose or even started the movie with it before doing a flashforward
Unfortunate Implications: The Asian friends in Step Up 3D gave our heroes a home when they had nowhere to go, trained with them, and heck danced with them to victory on the big night, the VERY definition of Fire-Forged Friends. And yet the writers do not seem to consider them important enough to have even ONE allowed to turn up in the final heartwarming ending celebration; this ungrateful vile crap is allowed to fly in spite of the fact that the director himself is an Asian.
- Half of the premise of the third film: racially diverse group of dancers. Rich white kid shows up, starts solving all of their problems.