With the economy down, maybe it’s not such a good time for a film festival? Actually, hard times often make for great personal films, and that’s what the Sundance Festival is counting on when it opens this week. “Independent filmmaking is tough out there, and most of these films are works of creative passion, and are works that take a great deal of tenacity and, essentially, determination to get made. You see a lot of work that has a kind of idiosyncratic creativeness to it. That’s something that drives these works into existence, rather than saying they’re driven by commercial considerations.”