Blu-ray + DVD + Digital. In his quest to find his vanished father Odin (Anthony Hopkins) with the coerced aid of treacherous brother Loki (Tom Hiddleston), Thor (Chris Hemsworth) finds himself waylaid in space and conscripted into the gladiatorial pens of the Grandmaster (Jeff Goldblum). Even if he survives an arena confrontation with old frenemy Hulk (Mark Ruffalo), can he halt Asgard's foretold destruction at the hands of his half-sister Hela (Cate Blanchett)? Action-packed, laugh-leavened Marvel entry co-stars Tessa Thompson, Idris Elba, Karl Urban. 130 min. Widescreen; Soundtrack: English. Two-disc set.