ascribe at 2010-08-25 11:23:48:
As a very young child, I was terrified by Roadrunner/Wiley Coyote cartoons. So much violence! Over time it sunk in that the characters always peeled their violently flattened selves up off the ground, puffed themselves out into three dimensions again, and off they went to the next round of mischief. It took a long time for me to move from my childish terror to the point where I saw the humor in those types of scenes. Many years later, I enjoyed watching "The Mask" with my son, who in middle school was a serious Jim Carey fan.
This seems related--my older brother went through an existential crisis when the Disney animal character Old Yeller died. I think it was especially hard on him because it resonated with the fact that a stray dog he'd adopted and loved had recently wandered onto a busy street and...you get the sad ending. The death onscreen brought all his feelings for his lost pet to the surface for him.
I think this subject--the effect of drama on kids--points to the fact that it's good for parents to watch TV and movies with their kids and to talk with them about the content. Drama was seen in ancient times as a tool for healing through catharsis.
I know that watching TV and movies with my son was one way of staying connected with what was really going on with him. A side benefit is that he became interested enough in drama to take part in numerous stage plays.