AT FIRST GLANCE, Channing Tatum’s filmmaking debut Dog — co-directed with longstanding producer Reid Carolin — appears to be a heartfelt comedy about an army veteran (played by Tatum) and his bond with a mischievous hound. It is, in fact, the pair’s attempt to shake up the genre entirely. Speaking to Empire, Tatum and Carolin reveal how they set out to reinvent the dog-buddy movie.