“Guardians of the Galaxy Vol. 3” stars Chris Pratt (Peter Quill / Star-Lord), Karen Gillan (Nebula), Will Poulter (Adam Warlock), Pom Klementieff (Mantis), Sean Gunn (Kraglin / On-Set Rocket), Chukwudi Iwuji (The High Evolutionary) and writer Director James Gunn discuss their Marvel film and conclusion of the “Guardians of the Galaxy” trilogy in this post-Hall H interview with CinemaBlend.