A feature adaptation of the long-running Mad Magazine comic strip Spy vs. Spy has been in the works for nearly a decade, and now Collider has exclusively learned that Rawson Marshall Thurber is in talks to direct the live-action movie for Warner Bros. and Imagine Entertainment. Ron Howard and Brian Grazer will produce for Imagine, which had initially developed the project as a potential directing vehicle for Howard. Back in June 2011, the Imagine duo brought in David Koepp to produce alongside them and oversee a screenplay that would be written by his Premium Rush partner John Kamps, …