Real-life tragedy may again delay the release of Dimension Films's O, Variety reports. The Shakespeare-inspired basketball drama — which stars Martin Sheen and teen dreams Julia Stiles and Josh Harnett and ends with four characters being brutally killed — wrapped filming back in summer 1999, but was kept on the shelf in the wake of the Columbine High School shootings. It's likely that Monday's high school shootings near San Diego will force the studio to postpone the movie's scheduled April 27 release.