There are Thor movies, and then there’s “Thor: Ragnarok.” From the liberal use of the Hulk to the perfectly bizarre Jeff Goldblum to the delightful villainy of Cate Blanchett, this is a wacky cosmic romp that’s a universe apart from the two previous Thor installments. Loki just wants to eat grapes, Valkyrie wants to be left alone, and Doug’s not here anymore, man. Pour one out for ol’ meow meow and join us for the Lord of Thunder—or is that the God of Hammers?—and his finest hour....