A Dark Knight TV spot, posted only a day or two ago. I was speaking a little while ago to a friend about Mamma Mia and The Dark Knight opening against each other on 7.18, and the zero conflict levels given that “the audience for the former is older women and the latter older men.” Older men? Yes, he said. Knight is a moodier, more psychologically complex drama that will won’t be as naturally popular with the under-25s as, say, Iron Man was. Really? Younger males are going to be slightly hesitant about a big new Batman film costarring the late Heath Ledger? News to me.