Adieu Philippine (1962)

Michel, a young TV cable-man who's due for military service in the Algerian War, meets two inseparable best friends, Juliette and Liliane, aspiring actresses who try to find luck wandering the studio. He starts flirting and dating them separately, without the other one knowing. And when he escapes on a final holiday to the island of Corsica before he gets drafted, he finds himself followed by the lovestruck girls. Now he must solve the unfortunate love triangle before saying goodbye forever.