Bowing to pressure from anxious sponsors, the Montreal World Film Festival on Wednesday pulled a controversial Hollywood movie about an infamous Canadian schoolgirl killer from its upcoming lineup. "Karla," starring Laura Prepon ("That '70s Show") as Karla Homolka, Canada's most notorious serial killer, was scheduled to receive a special screening during the Aug. 26-Sept. 5 event. Norma Reveler and Etan Vlessing report in Reuters.