Dennis Quaid LOSES HIS SHIT on the set of his new movie Truth, frantically yelling at the off-camera people on set. In this 43-second YouTube clip, Dennis thunders at crew members:

“What the fuck! ‘Keep going?’ I am acting here, and this dickhead wanders onto my set. I can’t even get a line out until dopey the dick starts whispering in your ear and you’re not even watching anymore … Don’t fucking Dennis me! I am doing my job here. I am a pro. This is the most unprofessional set I have ever been on. This is horseshit! I’ve got these fucking zombies over here that I have to look at. I have a bunch of pussies staring at me, and this fucking baby. This is garbage! … Blow me!”

It’s a great Christian Bale moment…. But is it real? “It oozes fake,” one YouTube commenter wrote. Another insisted, “Folks, it’s Jimmy Kimmel. Relax, it’s all staged.”

One viewer quipped, “His best performance in decades.”

Watch it below.