This post is sponsored by Universal Pictures Home Entertainment. All opinions are my own. Hey, Pitches! The Bellas are back for one last call in Pitch Perfect 3 – the next chapter in the beloved series that has taken in more than $400 million at the global box office, most of which was probably contributed by me. Seriously, guys. I love these movies! Available now on iTunes, I’m rallying my best gals for a movie night to celebrate. You Bella-believe it, we’re talking more music, a gag reel (I’m looking at you, Fat Amy!), and extended scenes…