Smosh: The Movie (2015)

Two long life friends, Ian and Anthony, get invited to their 5 year high school reunion. There's a girl who Anthony had a crush on. A video leaks on the school website when he got a mic up his butt singing at his prom. He goes to YouTube to get it removed. The head of YouTube, Steve YouTube, lets them into a portal where they can change the video. With an all star cast Ian Hecox, Anthony Padilla and Michael Ian Black, this is definitely the duo Smosh's best success.