With only one big-budget movie opening this weekend (“Aeon Flux“), it might be time to start making plans. The Charlize Theron-led sci-fi action film should have no trouble racking up an impressive three-day take at the box office, but that doesn’t mean it will actually be any good. Some markets might also be lucky enough to get the snowboarding documentary “First Descent,” and “Syrianna” goes into a much wider release this week as well. Still, if there’s an older movie you’ve been dying to see, this might be the time to do it.