LOS ANGELES – "Iron Man 2" held off another summer blockbuster, "Robin Hood," to remain at the top of the box office for a second-straight week. The sequel, starring Robert Downey Jr. as the Marvel Comics superhero, made just over $52 million for a total of $211.2 million since its May 7 debut.

The top 20 movies at U.S. and Canadian theaters Friday through Sunday, followed by distribution studio, gross, number of theater locations, average receipts per location, total gross and number of weeks in release, as compiled Monday by Hollywood.com are:

1. "Iron Man 2," Paramount, $52,041,005, 4,390 locations, $11,854 average, $211,200,876, two weeks.

2. "Robin Hood," Universal, $36,063,385, 3,503 locations, $10,295 average, $36,063,385, one week.

3. "Letters to Juliet," Summit, $13,540,486, 2,968 locations, $4,562 average, $13,540,486, one week.

4. "Just Wright," Fox Searchlight, $8,284,989, 1,831 locations, $4,525 average, $8,284,989, one week.

5. "How to Train Your Dragon," Paramount, $5,003,536, 2,620 locations, $1,910 average, $207,647,696, eight weeks.

6. "A Nightmare on Elm Street," Warner Bros., $4,657,190, 3,075 locations, $1,515 average, $56,066,595, three weeks.

7. "Date Night," Fox, $3,823,515, 2,481 locations, $1,541 average, $86,522,622, six weeks.

8. "The Back-Up Plan," CBS Films, $2,387,480, 2,497 locations, $956 average, $34,124,782, four weeks.

9. "Furry Vengeance," Summit, $2,242,106, 2,695 locations, $832 average, $15,089,070, three weeks.

10. "Clash of the Titans," Warner Bros., $1,231,396, 1,300 locations, $947 average, $160,127,747, seven weeks.

11. "Death at a Funeral," Sony Screen Gems, $1,138,148, 1,062 locations, $1,072 average, $40,495,964, five weeks.

12. "Babies," Focus Features, $995,660, 543 locations, $1,834 average, $3,881,216, two weeks.

13. "Oceans," Disney, $752,018, 973 locations, $773 average, $17,669,450, four weeks.

14. "The Last Song," Disney, $544,414, 802 locations, $679 average, $61,240,388, seven weeks.

15. "Kick-Ass," Lionsgate, $539,997, 609 locations, $887 average, $46,616,232, five weeks.

16. "The Losers," Warner Bros., $458,406, 701 locations, $654 average, $22,760,516, four weeks.

17. "Alice in Wonderland," Disney, $440,202, 403 locations, $1,092 average, $331,533,915, 11 weeks.

18. "Diary of a Wimpy Kid," Fox, $386,876, 468 locations, $827 average, $61,978,694, nine weeks.

19. "The Secret in Their Eyes," Sony Pictures Classics, $368,338, 103 locations, $3,576 average, $2,092,199, five weeks.

20. "Avatar," Fox, $335,174, 279 locations, $1,201 average, $748,468,373, 22 weeks.