t’s hard not to feel like one has entered a certain dimension of video-game logic while watching Hitman, a lightly enjoyable action-suspense movie indeed based on a popular and bloody game about a mysterious hired gun with a bar-code tattoo on his bald head and a number (47) in lieu of a name. Living like a chaste monk while slipping past borders to kill his targets, 47 (Timothy Olyphant of Deadwood) moves like a determined shark and speaks softly to his contact at the enigmatic "the Organization," which raises cast-off children to become well-paid assassins.