Warning: The following post will spoil most of the plot of La Piscine. While it’s not necessarily a film to be watched for the twists and turns of the plot, be warned if you haven’t seen the film.
Really, it should be obvious: Maurice Ronet should stay well away from Alain Delon, and that goes double if they’re anywhere near water. The first time I saw the two of them together in a film (in Purple Noon, the French adaptation of Patricia Highsmith’s novel The Talented Mr. Ripley), Delon’s Tom Ripley stabbed Philippe Greenleaf (played by Ronet) to death and tried to sink him to the bottom of the ocean. Let’s just say that Ronet doesn’t fare much better in La Piscine, and again, it’s Delon that dunnit. Apparently, the two were close friends, but if I’d been Ronet, I would have been very careful around the former when there’s a camera running anywhere nearby and when there’s water in the picture.
Marie Bäumer has been compared to Romy Schneider for so long that it was really only a question of time that she would play her. Emily Atef’s black-and-white 3 Days in Quiberon uses that likeness to great effect, so much so that when I picked the stills for this post, I had to check twice which actor I was looking at. The movie revolves around Schneider’s stay in a rehab resort on the French coast in March 1981, where she wants to give an interview to journalist Michael Jürgs from the German magazine Stern. It seems to be shot at least partly in its original locations. There is history between her and her favorite photographer Robert Lebeck, and she asks one of her friends, Hilde Fritsch, to come and keep her company. For Schneider, any interview was a double-edged sword because she inevitably would be asked about leaving Germany for France, the suicide of her first husband and the custody battle for her son, and of course about the Sissi trilogy. On the other hand, she was eager to go on making movies. 
A Damn Fine Cup of Culture 