The play within the play, See How They Run is an indulgent caper that is in on the joke. Full of nods to the technical and stylistic aspects of the genre it imitates, the film employs the same formula of those from a half century ago and tells you it’s doing so along the way. It’s heavy on the nostalgia in a way that is delightful if you lean into it; that coupled with the modern shots makes the whole…