My favorites are 1951 and 1952 Plymouths, and they have been in quite a few movies and TV shows.
Movies include 'The Hitch-Hiker' starring a '52 Cranbrook, '99 River Street' with a fleet of '52 Cambridge cabs, and 'Split Second' has a '52 business coupe that gets blown up (they also used a model car for some shots). A '51 Cranbrook sedan was featured in 'Come Back Little Sheba', and then there was the famous windshield kick-out scene with a '51 in 'The Godfather'.
On TV, Hazel's boyfriend had a '51, a blue '51 made several appearances in 'MASH', and for some reason Richie Cunningham's parents were posed next to a black '51 sedan on the 'Happy Days' reunion a couple of years ago.
There are quite a few more that I can think of (somethimes I think I'm too caught up in these cars....).
Harold