Legend. To provide a sense of velocity in the scene, the barge was towed by tugboats at one and a half knots. The production crew did not have a winch system available for the underwater shoot as depicted in the scene, so a pulley system was created by feeding Patric a rope that was attached to the axle of a car that drove along the barge. Instead of using stunt doubles, De Bont persuaded Bullock, Patric, and Dafoe to perform their own stunts, so the scenes would appear more realistic; the lead actors were required to engage in physical exercise sessions before and during filming. Stunt coordinator Dick Ziker was very impressed with Patric's stuntwork, and said that he "is so physical he probably could be one of the top stunt men in the world." His stunts included being dragged by a seaplane through the water, jumping onto collapsing buildings, and scuba diving while pulled by a moving ship. He was also required to tread water for multiple hours at a time. During a motorcycle stunt on a Ducati 916 on the second day of filming, Patric flew off the bike into the air and landed on a small bush; Bullock said the incident was so serious that Patric "should be dead." After surviving a traumatic surfing incident as a teenager, Bullock had to overcome her fear of water to perform necessary stuntwork in the film. During production at sea, Bullock was smacked into the ship on multiple occasions, and was saved by Patric from dangerous situation by the ship's rudder in one scene. Bullock and Patric also had a scene filmed in an underwater tank where they had to kiss underwater with Bullock's hands tied together. Navy SEALs with scuba gear were present inside the tank during shooting, as the actors had to hold their breath during the scene. According to Bullock, she performed all of her own stuntwork "except for a quarter of one stunt"; her stunt double worked for only three days during production. Of all the stunt-related incidents during production, De Bont said the most frightening was when a stunt woman was hit in the face by a boat cable and required reconstructive surgery. Following the production at sea, De Bont said that filming on water "was 100 percent more difficult than [he] imagined." Music Score Composer Mark Mancina wrote the film score for Speed 2