GUARDIANS OF THE GALAXY VOL. 2 (2017, USA, 137m, 12) *** Action, Adventure, Sci-Fi dist. Walt Disney Studios Motion Pictures; pr co. Marvel Enterprises / Marvel Studios / Moving Picture Company (MPC); d. James Gunn; w. James Gunn (based on the comic books by Dan Abnett and Andy Lanning and characters created by Bill Mantlo…