It’s a “Hela” family reunion as Thor and Loki meet their long lost sinister sister in Taiki Waititi’s anything-goes Marvel movie Thor: Ragnarok (B-). The director’s casual humor and electric interplanetary aesthetic channeling Flash Gordon make for a much-needed change of pace after the solemn second film in this trilogy. But it’s all a bit fussy and cluttered to distract from a rather one-note protagonist. To his credit, Chris Hemsworth does get to flex some comedic chops, balancing out the scenery-chewing sequences featuring Cate Blanchett. Lugubrious back stories get in the way of the central plot, but flourishes such as an Incredible Hulk parade, a flamboyant politico played by Jeff Goldblum and a recurring gag of botched entrances and exits keep it all breezy. I wish the director had been as clever with his editing.