The writers of “Disaster Movie” have built quite the franchise, cranking out spoof flicks like “Meet the Spartans” and “Epic Movie” on a yearly basis. Now they’re back with “Disaster Movie,” which … well, you get the idea. A hodgepodge of modern films find themselves under the gun, including — as you’ll see in the clip below — the “Juno” cast of Michael Cera and Ellen Page. Check out the song-filled parody below, and then check out the “Disaster” in theaters August 29.