You know how Michael Benjamin Bay got his start? He made a short film about a helicopter flying into the sunset:Which he parlayed into multi-million dollar box office smashes. This is how it works, fledgling film directors. You make a kick-ass short. People take notice.That's why you should enter the Miami International Film Festival's first annual Online Shorts Competition, presented in conjunction with Diesel. (The jeans company, not Vin.)From now until midnight on January 16, 2010, submit a f