Dennis Quaid Dennis Quaid

Dennis Quaid was recently filmed having a meltdown on the set of a movie, but is it too good to be true?

Quaid's expletive-laden tirade apparently resulted when a member of the crew wandered into the shot.

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"I am acting here, and this d---head wanders on to my set," Quaid screams, before eventually walking off the set. "This is most unprofessional set I have ever been on. This is horsesh--. I've got these f---ing zombies over here that I have to look at."

It is unclear when or where the incident took place. Some online skeptics, however, believe that it's all part of a prank tied to an upcoming appearance on Jimmy Kimmel Live, with Quaid mocking Christian Bale's notorious meltdown on the set of Terminator Salvation in 2009.

Check out Quaid's video below (warning: NSFW). Do you think his meltdown was real or staged?