The "supermarket sweep" with Ben whistling his suicide death note scene was voted Empire magazines eighth greatest drunk scene in movie history (2005).
In one scene near the start of the film set in a Los Angeles restaurant, two film producers (maybe agents) are having dinner with two actresses. One of the actresses, played by Emily Procter, says "I think the nicest thing about the film actually is that we get to handle guns, and I had never done that before". Years later, she would portrays a ballistics expert on CSI: Miami (2002).
A well known drink manufacturer objected to a man drinking himself to death so every shot that had a bottle of their product clearly visible the negative was electronically changed to mask the label on the bottle
The checks (casino chips) in play on the dice game in particular are unlabeled. Those are hard plastic play at home chips. Every joint has the name and denomination of their checks on a round label in the middle of their, usually, clay checks or sometimes a hard, slippery composite check with a metal insert about the size of a dime. The checks are labeled for obvious security reasons.
L.A. Bartender: Do you know what time it is? You should be drinking coffee. You're a young guy. It's none of my business, but if you could see what I see, you wouldn't be doing this to yourself.
What are the differences between the R-Rated and Unrated Version?
A
For the R-Rated Version the sex scenes were shortened or removed by additional footage. Altogether the R-Rated Version is approx. 40 seconds shorter than the Unrated Cut. A detailed comparison between both versions with pictures can be found here.