Actor Martin Sheen, about to start shooting a film based on the notion that 9/11 was an inside job, thinks Mitt Romney is stupid.

Sheen, who recently told us President Barack Obama would win in a cakewalk, opened up about the GOP challenger to The Huffington Post. He first focused on Romney’s recent presidential debate performance and later dropped some Occupy Wall Street lingo on the interviewer.

“Mr. Romney really showed his ass there, and how stupid he is and arrogant. There’s an old phrase, arrogance is ignorance matured, and that’s what we saw….”

“He is, in essence, a very arrogant, very successful businessman [who] believes in unreined free enterprise,” Sheen said. “He doesn’t have a clue what 99 per cent of the people are going through. He’s never lived on that level. He’s never had to compete for a job or face eviction or struggle to get a college loan. He’s a guy that the old phrase applies to: ‘he was born on third base and thought he hit a triple,'” Sheen said.

Here’s Sheen questioning what really happened on Sept. 11, 2011.