There were quite a few boys at the school when we selected movies for Movie Night that said they'd watch Frozen. It has Hans and Kristoff and Olaf and Sven, and of course Marshmallow (who I'm not sure is a girl or a boy but it is a snow monster so...cool beans) and not just girls.
Yes, DS LOVES it. He's just uner 2 1/2. DS will also sometimes say his name is Olaf, because he's hilaaaaaaarious.
We have 4 movies in heavy rotation, but only because we DVR'd them and we can push 2 buttons and he has 'his' movies: The LEGO movie, Frozen, Monster's Univ (he was Sulley for Halloween this year), and Wreck it Ralph.