Channing Tatum went on a road trip with his dying dog. The ‘Magic Mike’ actor has made his directorial debut with ‘Dog’ – in which he plays an army veteran who has a special bond with a mischievous hound – and he admitted his own relationship with his canine companion was part of the inspiration for the project. Channing – who has co-directed the movie with Reid Carolin – said: “My dog was dying and so we went on one last road trip together. “When I came back, I told the boys at the office about the experience and how emotional it was, and that’s really where the story came from. “We wanted to…