I actually went to see "Disaster Movie" today. Pretty much it's from the same people who brought you "Scary Movie," "Epic Movie", "Meet the Spartans", and "Superhero Movie."
Mostly spoofing such movies like "Hellboy", "Iron Man", "Hulk", "Twister" (watch out for flying cows), Alvin and the Chimpmunks, Kung Fu Panda, Night at the Museum, 10,000 BC, Juno, High School Musical, and Enchanted, as well as Sex and the City and Day after Tommorrow, Indiana Jones and the Crystal Skull, Beowulf, American Gladiators, Amy Whinehouse, Hannah Montana, Dr. Phil, Jessica Simpson, and the Dark Knight, the main character tries to get his girlfriend to safety while getting the Crystal Skull back on the altar. Wackiness ensues as celebrity parodies (Michael Jackson, among others), and I think they had a spoof of Speed Racer with the Mach 5.