I am resisting the urge to explain to him that Han Solo actually shot first. I'll give him that little diatribe when he is old enough to better roll his eyes at me.
For now, his thoughts on the film:
Opening title crawl: "Oh no, it's over."
On R2-D2: "What's the little baby saying?"
On Chewbacca: "That's a big dog."
On Darth Vader: "Ooh, I see the black guy. What's his name?"
Luke's landspeeder is a helicopter.
The sandpeople use a broomstick as a weapon.
C-3PO is R2D2's daddy.