Roger Ebert Chides Jackass Star Ryan Dunn

Astonishing new video has surfaced of Jackass star Ryan Dunn chugging an entire bottle of tequila.

At one point Dunn gags as he nears the bottom of the bottle, but he kept going and going until it was all gone. He actually collapses after draining the tequila at a spring break event in Mexico.

The maximonline.com video has just surfaced as an angry war of words erupts over Dunn's death after beloved movie critic Roger Ebert tweeted: "Friends don't let Jackasses drink and drive."

Ebert, who lost his lower jaw to cancer, made the tweet after seeing a photo of Dunn drinking right before he was killed.

Dunn allegedly had 3 beers and 3 shots. Published reports say his buddy on the far right was also killed in the wreck.

Dunn's grieving sidekick on Jackass, Bam Margera, tweeted to Ebert: "Shut your fat ******* mouth."

Blogger Perez Hilton also weighed in, writing: "Too soon, Roger."

At first, Ebert was unrepentant, posting in a followup tweet that said: "He drank, he drove, 2 people died." But he later wrote: "I had no way of knowing if Ryan Dunn was drunk. I was probably too quick to tweet. That was unseemly."

Jackass star Johnny Knoxville is also speaking out, saying, "Today I lost my brother. RIP Ryan, I love you buddy."