Dennis Quaid's viral meltdown was actually part of this Funny or Die prank

On Tuesday, what appeared to be a cell phone video of Dennis Quaid flipping out and yelling at crew members on a film set went totally viral.

Many guessed that the video was a prank coordinated by Jimmy Kimmel - but they were only half right. Turns out the expletive-ridden rant was promotion for a new Funny or Die video starring Quaid.

In the full video released today, Quaid's rant is explained with a few more visuals.

"I am acting here, and this d---head wanders onto 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."

"I am doing my job here. I am a pro. This is the most unprofessional set I have ever been on. This is horses---!"

"I've got these f------- zombies over here that I have to look at. I have a bunch of p------ staring at me."

"And this f------ baby!"

"This is garbage!"

"Blow me!"

"Sorry, I get grumpy when my hair gets flat," Quaid concludes in the video. "This is a really crazy set."

Watch the full video explanation below:

Now watch the initial viral video below from the crew's perspective: