The Mummy: Tomb of the Dragon Emperor came in second place with $42.5 million -- a decaying arm's length from Batman, and, unfortunately, from the first Mummy film, which made $43.4 in its 1999 opening weekend. And The Mummy Returns made $68 mill in 2001 -- was going to China for the three-peat a bad move? Or was it waiting seven years? Or is Rachel Weisz a bigger draw than we all thought? (I'm going to go with the first two.) Fraser did okay overall, though, because his Journey to the Center of the Earth is still in fourth place. That's right: Brendan Fraser. Has two films. In the Top Five. I'm happy for him, but I keep expecting Fenrir the Wolf to eat the sun, signalling the start of Ragnarok.

The rusty, dilapidated Kevin Costner vehicle Swing Vote debuted in sixth place ($6.3 million), probably because people are already tired of the presidential election on the news. Why would they pay to see the Postman gee-shucks his way through one with entirely fictional nominees, even if they are zombie-hating Dennis Hopper and the former X-Man Kelsey Grammer? At least the Beast did better than the Juggernaut -- Vinnie Jones' Midnight Meat Train got thrown under a subway car by being released on only 102 screens, despite looking like one of the better (read: least ridiculous) Clive Barker films. It made $8. Just kidding, it made $32,000. Now Lionsgate can buy its president a new car.

In other news, Step Brothers and Mamma Mia did pretty good, and X-Files: I Want to Believe is as desperate as its title plea. The complete top ten:

1. The Dark Knight (Warner Bros.) $43.8 million ($394.9 million total)
2. The Mummy: Tomb of the Dragon Emperor (Universal) $42.5 million
3. Step Brothers (Sony) $16.3 million ($62.9m total)
4. Mamma Mia (Universal) $13.1 million ($87.9m total)
5. Journey to the Center of the Earth 3D (New Line) $6.9 million ($73.1m total)
6. Swing Vote (Buena Vista) $6.3 million
7. Hancock (Sony) $5.2 million ($215.9m total)
8. Wall-E (Buena Vista) $4.7 million ($204.2m total)
9. The X Files: I Want to Believe (Fox) $3.4 million ($17.1m total)
10. Space Chimps (Fox) $2.8 million ($22.1m total)

Tune in next week, same Bat-time, same Bat-channel, to hear how a couple of stoners with a kick-ass soundtrack killed Batman. As M.I.A. would say, "All I wanna do is [gunshot noises, cash register opening] and take your money."