These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Sunset Boulevard
Award Snub: Painfully. Gloria Swanson lost the Best Actress Oscar only because Bette Davis in All About Eve was her main competitor. Swanson and Davis cancelled each other out (as both were playing over-the-hill, sharp-tongued actresses in films about the anxieties of aging and acting), leaving newcomer Judy Holliday winning for Born Yesterday.
Norma Desmond's idea for her comeback vehicle - a Biblical epic about Salome - is regarded as laughably ridiculous by DeMille and the other Hollywood types. However, not only was an actual mind boggingly awful Salome film (starring Rita Hayworth) produced in 1953, but numerous filmmakers throughout the rest of the '50s (including DeMille himself) would turn to Biblical epics as a way of competing with the television audience, and some of these efforts turned out to be every bit as schlocky as Norma's.
Buster Keaton's appearance as one of the forgotten actors now that he's better-remembered than anyone else in the cast.
Tear Jerker: Norma returns to the Paramount lot and is greeted by all her old friends and admirers, and she thinks this is the beginning of her return. It's not - DeMille is just being nice to her, and the real reason that Paramount kept calling her was because they wanted to rent her car.
The Woobie: By the end... everyone. But Max in particular has had a life of this.