With this week's announcement that James Gunn was not only writing but probably also directing DC's new Suicide Squad movie, it's now all but guaranteed that he won't be back for Guardians of the Galaxy Vol. 3. During the red carpet for this week's Stan Lee tribute in Los Angeles, the Associated Press caught up with Sean Gunn, brother of James Gunn who portrays Kraglin in the films and provides the motion capture for Rocket Raccoon.