Tron: Legacy debuts at top of US box office
Starring Oscar-winning actor Jeff Bridges, Garrett Hedlund and Olivia Wilde, Tron: Legacy focuses on a virtual-world worker, who looks at taking down the Master Control Program.
The film netted $43.6 million (£28 million), while Yogi Bear took the second spot with $16.7 million.
Dan Aykroyd and Justin Timberlake voice the characters of Yogi Bear and Boo Boo respectively in the Warner Brothers film, which also stars Anna Faris, Tom Cavanagh and T J Miller.
Last week's number one, The Chronicles of Narnia: The Voyage of the Dawn Treader, slipped two places to three, ahead of new entry The Fighter, which opened at four.
The Tourist slipped three places to five, while Tangled took the sixth place.
Black Swan, How Do You Know, Harry Potter and the Deathly Hallows: Part 1 and Unstoppable rounded off the top ten.