Stunt movie Jackass: Number Two has topped the North American box office, taking $28.1m (£14.7m) in its opening weekend, according to studio estimates.
Jackass stars Steve-O, Johnny Knoxville and Ehren McGehey (l-r)
The bad taste prank film sees one cast member burnt with a cattle brand and another attaching a leech to his eye.
It beat martial arts film Jet Li's Fearless into second place.
Sean Penn's political drama All the King's Men fared badly, entering the chart at number seven, with estimated takings of just $3.8m (£1.9m).
The remake, which stars Jude Law and Kate Winslet, had been expected to earn $8-10m (£4-5m).
Once box office estimates are confirmed on Monday, Jackass will have had the best opening weekend in the US since Will Ferrell's comedy, Talladega Nights, took $47m (£24.6m) in August.
The film has generally fared well with critics, who have called it "fearless, liberated, and cathartic" and praised its "inspired Dadaist moments".
Last week's number one, Gridiron Gang, starring Dwayne "The Rock" Johnson, dropped to number three.
The film is based on a true story about a team of troubled teenagers who find success playing American football.
World War I aerial dogfight film Flyboys debuted in fourth place with $6m (£3.1m).
Fifth place was taken by Everyone's Hero, which was directed by the late Christopher Reeve.
The animated film tells the story of a boy who travels across the country to return a bat to baseball legend Babe Ruth.
For the third consecutive weekend, the top 12 films fared less favourably than they did across the same weekend last year, taking $81.9m (£43m), compared with $87.9m (£46m).
However, takings were up 51.7% from last weekend.