Thor is imprisoned on the other side of the universe and finds himself in a gladiatorial fight against an old friend. Now, he’s on a quest for survival. USA TODAY (Photo: Walt Disney Studios Motion Pictures) “Thor: Ragnarok” is a blast, pure and simple. Purists — yes, they exist — will carp and moan that the story doesn’t take the Marvel Cinematic Universe seriously enough. (Note: If you refer to it as the "Marvel Cinematic Universe," maybe you are the one taking it too seriously.) To this bunch, the crack of a smile is too close to an admission that at heart these movies are about men and women in tights fighting incomprehensible battles against unlikely enemies who … WAIT, WHAT’S THAT? I CAN’T HEAR YOU BECAUSE I’M LAUGHING TOO HARD. That Loki, ha. What a kidder. Director Taika Waititi, whose credits include the outstanding “Hunt for the Wilderpeople” and the flat-out brilliant “What We Do in the Shadows,” brings his quirky comic sensibility to the film, which is most welcome. But he also gets genuinely terrific performances out of all the actors, who actually seem to be having fun. Imagine. Chris Hemsworth stars in "Thor: Ragnarok." (Photo: Walt […]