Iron Man has sparked a feud with Batman - Robert Downey Jr insists The Dark Knight is too complicated.
The actor admits he's still scratching his head about the Batman Begins sequel's plot - and he feels sure he's not the only one.
He tells MovieHole.net: "I feel like I'm dumb because I feel like I don't get many things that are so smart.
"(The Dark Knight) is like a Ferrari engine of storytelling and scriptwriting and I'm like, 'That's not my idea of what I want to see in a movie.'
"I didn't understand The Dark Knight... I still can't tell you what happened in the movie, what happened to the character and, in the end, they need him to be a bad guy.
"I'm like, 'I get it - this is so high brow and so f**king smart, I clearly need a college education to understand this movie.'"
WENN