Top Cow's Comic "Alibi" Picked up By Summit Entertainment Summit Entertainment, fresh off the success of "New Moon," has come onboard a feature version of Top Cow's comicbook "Alibi," with Mandeville toppers David Hoberman and Todd Lieberman producing. Comicbook, published last year, centers on a well-known socialite whose public presence establishes a perfect alibi for the covert activity of his secret twin brother, a government assassin. Mandeville snapped up rights to the project shortly after Comic-Con (Daily Variety, Aug. 4). Summit's attached John Hlavin to pen the script. He was recently hired to write the fourth installment of "Underworld" for Screen Gems and is developing his Western screenplay "Gunslinger" at Warner Bros. Hlavin's also writing "Boston P.D.," a cop procedural produced by Don Cheadle under his Crescendo banner, for NBC. He was previously was a writer and story editor on "The Shie