The Dirty Harry movie that wasn't.
Clint Eastwood plays loose cannon Ben Shockley, working out of Phoenix, not San Francisco, and Sondra Locke co-stars as the Vegas hooker-cum-witness that neither the mob nor his corrupt boss wants him to bring in.
It's intriguing to see Eastwood so antisocial - swearing and slapping Locke around - and there's plenty of gratuitous violence throughout, but it's telling that the film is still only truly memorable for the closing five minute bulletfest, which turns Clint's bus into the only thing with more holes in it than the screenplay.