Ant-Man is a small guy but he comes with a lot of baggage. With the high-profile mid-production replacement of Edgar Wright, a stylistically idiosyncratic film-maker with cult buzz, with Yes Man director Peyton Redd, much of the nerdtariat has already pegged Ant-Man as a test case for the limits of auteurism in the Marvel factory. And the pint-sized adventures of Scott Lang, Paul Rudd’s incredible shrinking superhero and the latest addition to the Avengers fringes, definitely invites this perspective. The film is immediately readable as a kind of Rorschach test, with tone, story and character work that stretches from inspired to…