Totals are U.S. box office only. SF and genre-related films are in bold.
Title (Dist.)…Weekend Box Office…Engagements…Average Cumulative
1. National Treasure 2 (BV)…$20,062,684…3,762… $170,870,795
2. Juno (FOX SEARCHLIGHT)…$15,860,744…1,952… $51,667,586
3. I Am Legend (WB)…$15,717,458…3,648…$228,055,662
4. Alvin and the Chipmunks (FOX)…$15,546,125…3,462…$176,283,861
5. One Missed Call (WB)…$12,511,473…2,240…$12,511,473
6. Charlie Wilson’s War (UNIV)…$8,106,250…2,594…$52,552,540
7. P.S. I Love You (WB)…$7,834,467…2,471…$39,202,724
8. The Water Horse: Legend of the Deep (SONY)…$6,230,489…2,777…$30,823,470
9. Sweeney Todd: The Demon Barber of Fleet Street (DW/PAR)…$5,536,538…1,249… $38,608,100
10. Atonement (FOCUS)…$5,064,577…583…$19,155,607
Source: Variety

“Alvin and the Chipmunks” is an “SF and genre-related film”? That’s a joke, right? Right?