Sean is securing a strong reputation behind the camera, having directed three short films for which he is already receiving a great deal of industry attention. His first, entitled On My Honor, was a 16-minute 35mm short based on his own idea about the exchange between an American and a Vietnamese soldier. Caught in a trap, they must decide whether to work together. They are forced to consider each other's humanity as they fight for survival.
In 1995, Sean was nominated for the Academy Award® for best live action short, for Kangaroo Court, which he directed and co-produced with his wife, Christine. Sean's father, John Astin, was nominated in the same category in 1969 for his original short, Prelude.
Sean's new short film The Long and Short of It screened at Sundance 2003.
A Directors Guild of America member, Sean has also directed episodes of the HBO anthology series Perversions of Science, Nickelodeon's 100 Good Deeds for Eddie McDowd and most recently Angel for The WB and Jeremiah for MGM.