Dennis Quaid Appears To Lose It On Film Set In Leaked Video (UPDATE)

UPDATE (April 15): Turns out Dennis Quaid's on-set freakout was a prank, courtesy of Funny or Die. That's right, Jimmy Kimmel was not the schemer behind this one.

Previously ...

TMZ obtained video of actor Dennis Quaid simply losing it on the set of one of his films, or at least that's what seems to be happening.

In the leaked clip, the 61-year-old actor is heard yelling at someone for walking on set while he is running his lines: "I can't even get a line out until dopey the d--k starts whispering in your ear, you're not even watching anymore."

He continues ranting, "No, don't f--king 'Dennis' me. I am doing my job here. This is the most unprofessional set I have ever been on. Quaid also unleashes a string of profanities while whoever is filming suddenly pans the camera away from him.

While Quaid certainly wouldn't be the first actor to get caught on camera losing it on set (hello there Christian Bale), HuffPost Entertainment has reached out to his rep for a comment, since you can't necessarily trust anything you read/see on the Internet.

The footage, which was actually uploaded to YouTube on April 10, reeks of yet another viral video set up.

"It feels scripted to me, but so does every viral video since [Jimmy] Kimmel started doing his schtick. It's really messing with my mind," a Redditor named Thumpar wrote on Monday, while another Redditor named AmazingMarv agreed: "Yes. There's something too on-point about it. Like if an actor were to do something like this, it would look exactly like this. Looks planned."

Did Quaid really have an on-set meltdown or is this the work of Jimmy Kimmel or some other viral marketer? Only time will tell.