Stumbled on this movie tonight. Kind of a precursor to Grand Prix.
Pretty cheezey, melodramatic story but it features colour footage of the 61 or 62 F1 season. A lot of it is sped up unfortunately but still worth checking out. Monaco, Spa, Rouen, Reims and Aintree are featured. Lots of pit lane and paddock shots.
https://m.youtube.com/watch?v=NKTmrpVtz6M&pp=ygUQVGhlIHlvdW5nIHJhY2Vycw%3D%3D