Farenheit 9/11 sets box office records for a documentary

Playing on only 868 screens and rated R, Farenheit 9/11 still won the weekend box office crown by pulling in $21.8 million and in the process became the top grossing documentary of all time.
It could have opened on more screens and tried to bank more business before the Spiderman 2 onslaught this weekend, but I suspect the movie will benefit from strong word-of-mouth.
I'd be surprised if Spiderman 2 doesn't shatter all the weekend box office records over the July 4 weekend. They cut an awesome set of trailers and commercials, and unlike Farenheit 9/11 Spidey will show up on a bazillion screens Wednesday.
In front of one of them I shall be.