'Guardians of the Galaxy, Vol. 3' overloads on action and sentiment : Pop Culture Happy Hour In Marvel's Guardians Of The Galaxy Vol. 3, our heroes are attacked by a new mysterious villain, and must embark on a dangerous mission to save the life of Rocket Raccoon. Written and directed by James Gunn, the movie brings back Chris Pratt, Zoe Saldana, Karen Gillan, Pom Klementieff, Dave Bautista, Bradley Cooper and Vin Diesel as our ever-expanding Guardians team. It's in theaters now.