Per Variety, Brian Cox, Anna Paquin, Dylan Baker and Leslie Bibb will star in Trick 'r Treat, a Halloween-set, Bryan Singer-produced horror pic.... Per the Hollywood Reporter, Venezuelan actor Edgar Ramirez ( Domino) will play a superkiller in The Bourne Ultimatum.... Alan Arkin, hot off the success of Little Miss Sunshine, is in talks to join Rendition, playing a senator who tries to help a pregnant woman (Reese Witherspoon) find her missing CIA analyst husband (Jake Gyllenhaal)..... Lionsgate has nabbed U.S. distribution rights to a live-action feature based on the Bratz dolls. Production starts in February, no casting has been announced. (Hurry, Mary-Kate and Ashley, hurry!)