Hard to Kill

Hard to Kill, a 1990 action film directed by Bruce Malmuth and starring Steven Seagal, Kelly LeBrock, Frederick Coffin, William Sadler. The film stars Seagal as Detective Mason Storm, who is shot into a coma in the same fire-fight that kills his wife Felicia (Bonnie Burroughs) and son Sonny (Geoffrey Bara)... or so he thinks. He reawakens seven years later to find his son alive (now played by Zachary Rosencranz) and seeks vengeance with the coma-ward nurse (LeBrock) and his old partner (Coffin). This film cemented Seagal's status as the "Aikido" action hero, due to the very esoteric, anachronistic techniques his character employs to overcome antagonists. For example "knee-walking" while in seiza (正座, literally "correct sitting") is employed to navigate a convenience store aisle without exposing the head to gunfire; this has origins in culturally-mandated etiquette (specific to pre-Meiji Japan and during some traditional arts such as the tea ceremony & Ikebana). (Robert Twigger's book... full article at wikipedia