High school comedy Superbad has topped the North American box office chart in its first week of release.
Superbad is the latest hit comedy from producer Judd Apatow
The movie, starring Michael Cera from TV sitcom Arrested Development, earned $33m (£16.6m) in its opening weekend, having cost only $20m (£10m) to make.
It knocked last week's chart-topper, Rush Hour 3, into second place, with takings of $21.4m (£10.8m).
The Bourne Ultimatum dropped to number three in the US and Canada, while The Simpsons Movie landed at number four.
Superbad has beaten a long-standing box office record for films released after the rush of summer blockbusters.
It displaces 1995 action film Mortal Kombat as the top earner to make its debut after 15 August, according to distributor Sony Pictures.
The film is the latest hit comedy for producer Judd Apatow and writer Seth Rogen.
NORTH AMERICAN BOX OFFICE
1. Superbad ($33.0m)
2. Rush Hour 3 ($21.4m)
3. The Bourne Ultimatum ($19.9m)
4. The Simpsons Movie (above, $6.8m)
5. The Invasion ($6m)
6. Stardust ($5.7m)
7. Hairspray ($4.5m)
8. Underdog ($3.8m)
9. Harry Potter and the Order of the Phoenix ($3.7m)
10. I Now Pronounce You Chuck and Larry ($3.6m)
Studio estimates for Fri-Sun. Source: Media by Numbers
The pair have previously had box office success with films like The 40-Year-Old Virgin, Anchorman and Knocked Up - which has now taken more than $100m (£50m) since opening in the US in June.
"I think a genuinely funny movie always has a shot at doing well, because so few movies are really funny," said Apatow.
"I was hoping we would do as well as Knocked Up and now I'm thrilled we did that with Knocked Up's punk-ass little brother."
Elsewhere in the chart, Nicole Kidman and Daniel Craig had a disappointing opening weekend for their latest film, The Invasion.
An update of schlock-horror film The Invasion Of The Body-Snatchers, it entered at number five, with takings of $6m (£3m).
Stardust, a fantasy film starring Claire Danes, grossed $5.7 million (£2.8m) for the number six spot.
Musical comedy Hairspray took seventh place, and has achieved a box office total of $100m (£50m) since it opened in July.
The top 10 was rounded out by canine superhero adventure Underdog at eight, Harry Potter and the Order of the Phoenix at nine and comedy I Now Pronounce You Chuck and Larry at 10.
Blockbuster sequels like Spider-Man 3 and Die Hard 4.0 combined with surprise hits like Superbad and Knocked up, have put Hollywood studios on track for their most lucractive summer ever.
Box office takings in the US and Canada are expected to top $4bn (£2bn) for the first time, said analysts media by numbers.
So far, ticket sales stand at around $3.83bn (£1.93bn), with two weeks of the summer season - which runs from early May to the end of August - to go.