Peter Yates' Bullitt is about as realistic as a police procedural is going to get whilst still being engaging. Steve McQueen is fantastic, he always makes everything seem effortlessly cool! I read McQueen actually modelled his character on Zodiac hunting Detective Dave Toschi, who helped inspire DIRTY HARRY too and was played in ZODIAC by Mark Ruffalo. The famous 10-mins car chase sequence is obviously memorable & influential but that foot chase and airport shootout in the climax goes even harder, the third act in particular is a masterpiece in escalating tension. (reminded me of Heat' climax).