The Internet is abuzz with controversy after a video of actor Dennis Quaid going berserk at what he calls the "most unprofessional set" has gone viral.

The 43-second video appears to have been shot on a cell phone and has been uploaded to YouTube, where it currently has nearly 1.5 million views and, surprisingly, more likes than dislikes. In it, the actor, who's captured the hearts of American moviegoers in iconic films such as "The Day After Tomorrow," "The Parent Trap," and "Footloose," is filmed flying off the handle and hurtling expletive-laced insults at people who appear to be behind the camera.

"What the f---?" Quaid screams. "Keep going. I am acting here, and this d---head here wanders on my set. I can't even get a line out, until Dopey the d--- starts whispering in your ear and you're not even watching anymore!"

"Don't f---ing Dennis me!" he hollers at someone who tries to appease him. "I am doing my job here. I am a pro. This is the most unprofessional set I have ever been on. This is horse s---!"

"I've got these f---ing zombies over here that I have to look at, I have a bunch of pussies staring at me and this f---ing baby," Quaid says, ending his tirade. "This is garbage. Blow me!"

The video of the 61-year-old's meltdown has sparked a flurry of debate about whether it's a hoax or not. Some netizens have speculated that Quaid, who is no stranger to participating in viral pranks, pretended to go ballistic on set as part of a stunt for ABC's "Jimmy Kimmel Live." But Kimmel himself spoke up about the rumor, saying that he had no part to play in Quaid's viral video.

"I watched it a bunch of times last night, and when I woke up this morning, I was being blamed for it," Kimmel said during Tuesday's episode of "Jimmy Kimmel Live." "There are two dozen articles and thousands of comments online suggesting that this is a prank, and I am responsible for it. And I have to say, that's disappointing. You play like 50 pranks and all of a sudden people don't trust you anymore."

TMZ, however, thinks there's a whole new side to the meltdown video. A TMZ cameraman got hold of Quaid taking pictures with fans in New York City and asked the actor what happened at the set, to which an irritated Quaid gave him a short "Come on, man," and got inside his car.

"Our photog asked Quaid to tell us the truth about the vid - and while he said very little... check out that smile," says TMZ.

What the Hollywood gossip website wants to point out is the video was conveniently "leaked" to the Internet on the very same day Quaid held a press conference to announce a new one-hour scripted drama for Sony's streaming channel Crackle.

Watch the video of the actor's meltdown.

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