Los Angeles ? Movie fans have bookmarked the Facebook drama “The Social Network” as their weekend favorite.

David Fincher’s saga about personality clashes and legal feuds among the website’s founders took in $15.5 million to remain the No. 1 film for a second straight weekend, according to studio estimates Sunday. Released by Sony, “The Social Network” raised its 10-day total to $46.1 million.

Debuting a close second with a so-so $14.6 million weekend was the Warner Bros. romance “Life as We Know It,” starring Katherine Heigl and Josh Duhamel as sparring guardians to an orphaned girl.

Disney’s horse-racing drama “Secretariat,” starring Diane Lane, also had a so-so debut, coming in at No. 3 with $12.6 million.

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

1. “The Social Network,” $15.5 million.
2. “Life as We Know It,” $14.6 million.
3. “Secretariat,” $12.6 million.
4. “Legend of the Guardians: The Owls of Ga’Hoole,” $7 million.
5. “My Soul to Take,” $6.9 million.
6. “The Town,” $6.4 million.
7. “Wall Street: Money Never Sleeps,” $4.6 million.
8. “Easy A,” $4.2 million.
9. “Case 39,” $2.6 million.
10. “You Again,” $2.5 million.