You can use them for the purpose of a review, but be careful with the automatically copyright thing that youtube has. Search up YMS (yourmoviesucksdotorg), he uses the movie footage like it's nothing. He also has a video on the copyright infringement so check that out.
But just to be safe, remember to flip the video and try to zoom in a bit so that you won't get copyrighted by the bots of youtube. I recently did that for my Earth to Echo review (used trailers).