ammunition, and Callahan shoots Rook with a Svend Foyn harpoon cannon, impaling him. Callahan leaves with Walker as the police arrive. Cast Members of the hard rock band Guns N' Roses make uncredited cameo appearances at the funeral of Johnny Squares. They also appear during filming of a "nightmare scene" at the docks, where guitarist Slash fires a harpoon gun through a window and is berated by Swan. Production Eastwood reacted to starring in another Dirty Harry film, "It's fun, once in a while, to have a character you can go back to. It's like revisiting an old friend you haven't seen for a long time. You figure 'I'll go back and see how he feels about things now.'" The Dead Pool was filmed in February and March 1988 in San Francisco. The Dead Pool is the only Dirty Harry film in which Albert Popwell does not appear. He was not available due to a scheduling conflict with filming on Who's That Girl. Car chase Callahan is pursued through San Francisco's hilly streets in his unmarked Oldsmobile 98 squad car by a miniature R/C (remote-controlled) car (assembled and controlled by Rook) containing an R/C bomb for Rook to detonate. The R/C car used for the film was a highly modified Team Associated RC10 electric race buggy powered by a Reedy motor that had to be geared up high to an 8.4v NiCd battery, topped with an off-the-shelf 1963 Chevrolet Corvette R/C car body by Parma International. The RC10 had its suspension lowered from the original to a lower ground clearance for better high-speed stability. Needing the best R/C car driver to control the RC10 action, Van Horn hired the 1985 IFMAR 1:10 Electric Off-Road World Champion Jay Halsey. At first, Van Horn was unsure if the RC10 could keep up with the Oldsmobile, so for the scene where both vehicles start from the top of the hill, the director allowed both cars to start off together. As a result, the RC10 outran the Oldsmobile, so the scene had to be re-filmed with the Oldsmobile reaching the bottom first. At one point in a scene where the cars interact, the RC10 jumps over the Oldsmobile, lands, and then proceeds to the end of the street to wait for the Oldsmobile. One scene, in which Halsey was only required to drive the RC10 at full speed to where the bomb was to