No, I haven't seen "Ripley" yet, but I have seen the 1st version of the Highsmith triller on video: "Plein Soleil" or "Purple Noon", as it's called in English. Rene Clement("Forbidden Games") directed Alain Delon in this version filmed on the French Riviera. A very stylish film. (And if you haven't already, treat yourself to Alfred Hitchcock's classic film of Highsmith's 1st novel, "Strangers On A Train". I have the book and movie both!)
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Terry Bigham