Tom Heywood was in San Francisco when son Kee Heywood shot a weekend of footage for his first film, entitled “Phantom-Limbed.” The scenes were filmed at San Francisco’s landmark burger joint, Joe’s Cable Car Restaurant. The production rented the restaurant from 10:30 p.m. to 5:30 a.m. Kee’s brother Sung shot behind-the-scenes video footage, and Tom said he was impressed with the cast and crew’s level of professionalism. “They were very focused and prepared. It was…