The Bellas leave Barden in new Pitch Perfect 3 trailer Universal Pictures has revealed a new Pitch Perfect 3 trailer, in which the Bellas leave Barden to perform for the USO! What do you think about the new Pitch Perfect trailer? Let us know your thoughts in the comments. Now graduated from college and out in the real world where it takes more than a cappella to get by, the Bellas return in Pitch Perfect 3, the next chapter in the beloved series that has taken in more than $400 million at the global box office. After the highs of winning the World Championships, the Bellas find themselves split apart and discovering there aren’t job prospects for making music with your mouth.