Iron Man 3 broke box office records this weekend, earning $175.3 million - the second biggest opening after The Avengers (which also stars Robert Downey Jr. as Iron Man), which took in $207.4 million when it debuted.

Last week's number one film, Pain and Gain, dropped one spot with $7.6 million while 42 stayed put at number three with $6.2 million. The sci-fi Tom Cruise vehicle Oblivion fell two spots to number four with $5.7 million while the number five spot went to The Croods with $4.2 million.

1. Iron Man 3, Disney, $175,300,000 (avg. $41,218)
2. Pain and Gain, Paramount, $7,600,000 (avg. $2,312)
3. 42, Warner Bros., $6,210,000 (avg. $1,857)
4. Oblivion, Universal, $5,797,000 (avg. $1,690)
5. The Croods, Fox, $4,225,000 (avg. $1,449)
6. The Big Wedding, Lionsgate, $3,875,000 (avg. $1,472)
7. Mud, Roadside Attractions, $2,150,000 (avg. $3,733)
8. Oz The Great and Powerful, Disney, $1,822,000 (avg. $1,571)
9. Scary Movie 5, Weinstein Co./Dimension, $1,435,000 (avg. $773)
10. The Place Beyond the Pines, Focus, $1,298,000 (avg. $1,117)