Edgar Wright has been working on getting an Ant-Man film together at Marvel for better part of a decade. Now with it's script co-written by Joe Cornish complete and release date set, he's about to start pre-production on the film. Before taking a month off to relax ahead of the start of principle photography. Wright has posted a behind the scenes image on Twitter from his test footage which again hints how much post-production Ant-Man is going to need. It's possible casting for the film will soon be underway.