Favourite is a word I refrained from, there's so many that to have a favourite implies that others come nowhere near, apart from that, my American spell checker scolds my spelling of favourite. The chase in Bullitt, has got to be one of the most watched/quoted/enjoyed. And without doubt, the car chase in The French Connection is just as famous. Just recently I watched the Lone Ranger remake, some chase that was. But for now, I'm going to choose an animated short film in The Wallace & Gromit series, I'm not sure if it's shown outside the UK, but I know the animator did have a connection with Disney, so it's possible.