I saw his film "Rebel Without a Cause" in around 2010, I think. Anyway when I saw him in red jacket and have no idea who he is. His name appeared in the end credits or at the start (i don't remember) :P I googled him on the internet and found out it was James Dean so I started to read his biography about him :)
Now I know who he was :) I love the way his character Jim loves Natalie Wood's Judy and how they were close ;)