UPDATE: A spokesperson for the Pennsylvania Office of Homeland Security denies the story.

The people at Pennsylvania's Office of Homeland Security probably shouldn't make Mark Ruffalo angry. They might not like him when he's angry.

It's been revealed that Ruffalo, the actor scheduled to play the Incredible Hulk in The Avengers, has been placed on a terror advisory watch list by the U.S. government.

His inclusion was reportedly a result of his support of the documentary Gasland and his vocal opposition of natural gas drilling.

Despite being deemed a possible security threat, Ruffalo isn't phased.

"(It's) pretty f**kin' funny," he told GQ.