F911 per screen opening was $9868, more than the $9297 for Spiderman. But ya know, that "per screen" thing only goes so far, it is not a full picture of the actual demand. F911 obviously could have supported more screens, I doubt, however, anywhere near as many as Spiderman.
Per screen is a misnomer. The liberals are going to go see F911 wherever it was shown. You get the same audience totals no matter the number of screens. Instead, you create an artificial number that makes F911 seem relevant.
Spidey is creaming F911, and I expect there will be a few more movies that will bury F911 until it gets released as a dvd.