''Oceans,'' $6 million.

Narrated by Pierce Brosnan, ''Oceans'' offers up-close glimpses of blue whales, walruses, sea turtles, spider crabs and other aquatic life. Since opening on Earth Day Thursday, ''Oceans'' has taken in $8.5 million.

''Oceans'' played in narrower release than other new movies, averaging $4,975 in 1,206 theaters, a fair result for a documentary. By comparison, ''The Back-up Plan'' averaged $3,735 in 3,280 theaters and ''The Losers'' averaged $3,271 in 2,936 cinemas.

Estimated ticket sales for Friday through Sunday at U.S. and Canadian theaters, according to Hollywood.com. Final figures will be released Monday.

1. ''How to Train Your Dragon,'' $15 million.

2. ''The Back-up Plan,'' $12.3 million.

3. ''Date Night,'' $10.6 million.

4. ''The Losers,'' $9.6 million.

5. ''Kick-Ass,'' $9.5 million.

6. ''Clash of the Titans,'' $9 million.

7. ''Death at a Funeral,'' $8 million.

8. ''Oceans,'' $6 million.

9. ''The Last Song,'' $3.7 million.

10. ''Alice in Wonderland,'' $2.2 million.