$21.3 million: Amount of money brought in by horrow flick “The Possession” over Labor Day weekend, giving it the top spot at the box office. The Tom Hardy/Shia LaBeouf flick “Lawless” came in second with $15.1 million. “Expendables 2” dropped in to third with $11.2 million. But two blockbusters also made news at the box office this weeked — “Marvel’s The Avengers” crossed the $1.5 billion mark and “Dark Knight Rises” topped $1 billion.

