Gambling drama 21 has debuted at the top of the North American box office, according to studio estimates.
The film, which stars Oscar-winning actor Kevin Spacey and Kate Bosworth, took in $23.7m between Friday and Sunday.
21, about college students caught counting cards at Las Vegas blackjack tables, is directed by Robert Luketic.
Last week's leader, animated movie Dr Seuss' Horton Hears A Who!, dropped to number two after taking $17.4m.
Superhero Movie entered the US film chart at number three, with ticket sales of an estimated $9.6m.
Comedy Meet The Browns, directed by Tyler Perry, slipped two spots to fourth, taking $7.8m.
Drillbit Taylor, starring Owen Wilson, took fifth place with $5.8m.
But takings for the top 12 movies in the US list were down 23 per cent from the same weekend last year.
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