Astrowsky loved it.A behind-the-scenes shot of a realistic looking beaver attacking with actor Peter Gilroy. (Armory Films)The film secured about $1.5 million in funding???which would maybe cover the push-up bra budget on a Michael Bay film???and then Rubin and Co. held an open casting call, populating their film with mostly unknowns (save Palm, who???d starred in several B-movies).