PG-13

The rating is PG-13 because: shirtless Chris Hemsworth (you're welcome, folks).

Oh, and because the fights tend to be kind of pound-y.

That said, the fights are definitely of the comic book variety (we're pretty sure no naïve kids out there are going to try throwing their hammer through a giant ice monster) and most of the hard hitting involves frost giants, space robots and various other Things We'll Never See in Real Life.

And the sex? We got to be honest: there's some heat between Thor and Jane (and Thor and Sif, for that matter.) But it's pretty chaste—beyond some steamy kisses, we stay pretty much in the vicinity of first base.