Roger Ebert, the first film critic to win a Pulitzer Prize for Criticism, has refused to apologise for posting an impulsive message on Twitter following the death of Jackass star Ryan Dunn on Monday.

The legendary film critic tweeted around 3 pm EST that Friends don't let Jackasses drink and drive.

The tweet sparked a controversy among Dunn's friends, fans and well-wishers, including blogger Perez Hilton.

Perez Hilton suggested that the film critic's comments may have been made too soon after Dunn's death.

Around 8 pm, Ebert tweeted in response to Hilton’s message that “Perez Hilton's readers agree with me and not with Perez about my tweet on Ryan Dunn. He drank, he drove, 2 people died.

Bam Margera, a long- time friend of dead Ryan Dunn, became outraged and blasted legendary film critic Roger Ebert for his comments on Twitter over the death of Dunn.

Jackass star Ryan Dunn was killed early Monday morning in a car accident as his Porsche 911 GT3 flew off the road and exploded.

The accident occurred near Dunn’s home in West Chester, Pa., according to the West Goshen Township police. The 34-year-old was returning after a night party. His body was charred beyond recognition and was identified by the tattoos.

His car was capable of reaching 190 mile per hour and the accident was surmised to have been caused by high speed. Shortly before the accident, Dunn posted a photo to his Twitter account at 1 a.m. which apparently showed him drinking with friends

According to the West Goshen Township police report, Dunn's Porsche 911 GT3 was fully engulfed in flames when officers responding to a report of an auto accident near Route 322 and Pottstown Pike found it off the road and in the woods.

TMZ reported that sources informed Dunn had drunk at least three light beers and three shots between 10.30pm and 2.10am at Barnaby's of America bar.

Dunn was an original member of the “Jackass” franchise. He also starred in spinoffs like 'Viva la Bam,' and his own MTV show 'Homewrecker'.