In Canada, Casting loves the 3 min Demo. In LA, there are so many agents and managers in the mix, there is no one preferred Demo Reel format. In general, they want a highly energetic 120 second Reel - or a collection of complete scenes from top series roles that goes on for 5 or 6 minutes. Always give your agents what they want. Like Jessica and I did in this Demo for her LA managers.