'Une Veuve En Or' (French film from 1969). Michèle Mercier is wearing a lovely shiny red PVC mac in one scene. A clip from the film was put up on the Forum a couple of years ago but it only showed 14 seconds of the mac scene unfortunately - hence the reason for me posting a link to the whole film. The mac scene is just under 3 minutes in length. Enjoy!
Timing: 16'-16" to 19'-00".
URL: https://noodlemagazine.com/watch/61950003_456244749
It is such a lovely mac that Michèle wears in the film I was hoping to find a few nice stills to go with the link. After much searching, sadly this is the only one I came across: https://postimg.cc/BtN3B1gv