The Watcher, starring Keanu Reeves as a serial killer, beat the dark comedy Nurse Betty at the box office over the weekend. The Watcher grossed an estimated $9.1 million. The higher-profile Nurse Betty, which garnered mostly favorable reviews, opened at No. 2 with $7.3 million — it stars Renée Zellweger as an obsessed soap fan who stalks Greg Kinnear. After two weeks on top, the cheerleading flick Bring It On was bumped to third place with $6.5 million. The Cell and Space Cowboys rounded out the lacklsuter moviegoing weekend, with grosses of $3.5 million and $3.3 million, respectively. Meanwhile, The Way of the Gun, starring Ryan Phillippe and Juliette Lewis, debuted at No. 9 with $2.2 million.