Fact-based story of Sonora Webster (Gabrielle Anwar), who rises to fame as a diver-on-horseback at Atlantic City's Steel Pier. Michael Schoeffling. Dr. Carver: Cliff Robertson. Clifford: Dylan Kussman. Marie: Kathleen Yor. Slater: Frank Renzulli. Arnette: Nancy Moore Atchison. Aunt Helen: Lisa Norman. Directed by Steve Miner.