'The Twilight Saga: Breaking Dawn Part 1'

Don't underestimate vampires and werewolves when they go up against various frogs, pigs, and bears. That's this weekend's box office lesson. With no new wide-release movies in theaters, the box office competition was supposed to be a closely fought battle between holdovers ''The Twilight Saga: Breaking Dawn Part 1' and ''The Muppets,' but it didn't end up close at all. 'Breaking Dawn' easily defended its crown for a third straight week at the top, while 'The Muppets' plummeted faster than expected to a distant second place.