According to Boxofficemojo.com, last weekend's top film, Viacom's (NYSE: VIA) Tropic Thunder, retained its number-one status over the past three days. It is estimated to have grossed $16 million at domestic theaters as of this writing. Of course, things could change, since the film currently in second place, Sony's (NYSE: SNE) The House Bunny, is only about a million dollars behind the Ben Stiller comedy. I have a feeling, though, that Thunder will keep its top spot. It seems to have some decent momentum behind it.

Death Race, released by General Electric's (NYSE: GE) Universal, came in third with about $12 million. Not too exciting of a debut. This is the kind of the film that ideally should have come out at the beginning of the summer box-office season. Since I haven't seen it, I can't say whether it would have been appropriate to have released it at that time (i.e., maybe it didn't come out that great and needed to be dumped in the latter days of August).

Dropping two places to number four is everybody's favorite superhero these days, Time Warner's (NYSE: TWX) The Dark Knight. The movie has roughly $489 million in total to its credit. It won't reach the heights of Titanic, but it will pass $500 million. Not too shabby for the Bat. I'm sure the studio division at Time Warner is working overdrive right now to construct a competent, cohesive marketing campaign to ensure that the home-video release adequately takes advantage of the incredible theatrical success that Knight has generated. They really have a big property on their hands with this one.