K.U.
I probably would just skip the movies at this point and wait until he is older. My DD is 3.5 and there is plenty of stuff on TV (Nick Jr., Sprout, etc.) that keeps her entertained without any scary parts. She likes some movies but then really can't handle certain things - she will like them the first time through but then knows what to expect with the scary bits and doesn't want to watch the movie again at all. She'll say, "That was a great movie!" after the first time but then doesn't want you to put it on again if you ask. She doesn't even like Jafar from Alladin because "he's a mean guy!" She knows who all the Disney princesses and other characters are, loves Nemo, but won't actually watch the movies about them because of bad guys and scary stuff. For whatever reason, she is scared of Buzz Lightyear, even though I've told her he is a good guy and is Woody's friend. Even her cartoons that she watches all the time, she doesn't like certain episodes if it means one of the characters gets in trouble, and wants me to change it.