And talking of cars: there is a website the IMCDB which identifies the makes, models, years of cars used in films.

I sometimes use it to clarify, say, the cars used in old Italian or French films (I mean say 1940/50s films - having once owned my share of Citroen and Fiat cars).

It is as nurdy as cycling sites but, for example, to choose a film well known for its cars: Thelma and Louise includes 51 identifiable cars.