Here’s a safe bet for a good box office: Justin Timberlake and Ben Affleck in the same film. The suited pair will reportedly star in Runner Runner, a gambling drama by director Brad Furman (Lincoln Lawyer) from a script by Rounders scribes, Brian Koppelman and David Levien. The New Regency picture will be set in the world of offshore online gaming and features the deteriorating relationship between a business founder and his protege. For those of you who lack a gambling addiction, the poker term “runner runner” refers to a hand made by hitting two consecutive cards on the turn and the river. The movie could equally have been called “backdoor,” which is another name for the same thing, but I doubt studio executives wanted to touch that one. Deadline reports that Runner Runner will start production this June.