And the box office champion this week is...

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.