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: The Big Sleep
Crowning Moment of Funny: A Few, particulary for a film noir. Perhaps the most memorable is the three way phone conversation between Marlowe, Vivian and a confused policeman at the police station.
Executive Meddling: Bacall being placed in scenes that her character didn't appear in in the book destroys their potency somewhat. In the book, Mars' wife is the one to cut Marlowe free when he's tied up by Canino, Marlowe makes her see what kind of monster her husband really is and what kind of monster Canino is and a result she saves his life.
Marlowe and other characters are open with their disgust for homosexuals. They freely use homophobic slurs like "queen" and make jokes at their expense. After getting decked by a gay man, Marlowe asserts that it didn't hurt much because gay men "have no iron in their bones."
Geiger's pornography business is an underground criminal enterprise, and Marlowe is thoroughly disgusted by it.