The Apartment (1960)

Though just a cog at his company, C.C. Baxter has stumbled onto a shortcut to the top: allowing executives to use his nearby apartment for extramarital entertaining. The problem is that it's become less of an "allow" situation and more of a "can't refuse" one, making it very difficult for him to get a full night's sleep. The arrangement gets even more inconvenient when Baxter finds one of the women passed out on his bed.

Despite the tawdry set-up, there's a real hopefulness to this. TCM's Mank had a quote from Lemmon saying that Billy Wilder grew a rose in a garbage pail with this one. I couldn't have said it better myself.

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