Yes it is Chase Mejia in the movie. Just look at the photo.
K State has confirmed that Mejia's no longer with the team, and his Facebook status (before he set it to private) read:
"f*ck all the haters, you're only young once, live with no regrets, i got paid 1500 and a free trip to miami so f*ck you guys HAHAHAHAHA."
I actually can't say with certainty if this is really him, but it look a lot like Chase.