Random Trivia For This Title:
- Sammy Davis Jr., required wooden blocks attached to the pedals on the garbage truck he drove in the film so that he could reach them.
- In a scene between Danny (Frank Sinatra) and Adele (Patrice Wymore), Adele throws a dish of candy at Danny. The throwing of the dish was ad-libbed, which accounts for the genuine look of surprise on Sinatra's face and the faces of his co-stars.
- Significant portions of the movie interactions between major characters were ad-libbed. The actors playing the leading roles all knew each other well and improvised dialogue as well as or better than the script.
- Most filming was accomplished early in the morning, before sunrise, since most of the actors also had shows in Las Vegas that they performed nightly during the shooting. The actors would wake up in the afternoon, do one or two shows in the evening, then go through make-up and arrive at the shooting locations for principal photography. Each shooting location was fully set up in advance so that minimal time would be wasted once the actors arrived.
- Because of actor Akim Tamiroff's thick Russian accent, the sound editor often had to adjust segments of his dialog in order for him to be understood.
- Shirley MacLaine's tipsy uncredited cameo was ad-libbed by the actress, for which she reportedly received a brand new car from Warner Bros. as compensation. Her line, "I'm so drunk I don't think I could lie down without holding on," was a rehash of a classic Dean Martin line. She shot her quick cameo during a break in filming The Apartment. She says she took the job as an excuse to hang out with her Rat Pack friends and see their Vegas show.
- As Peter Lawford, Dean Martin and Frank Sinatra attempt to disguise themselves by blackening their faces in the garbage truck near the end of the movie, Sammy Davis Jr. says, "I knew this color would come in handy some day." Martin and Sinatra teased Davis about that scene for as long as they knew each other thereafter.
- Tony Curtis, [?] Jackie Gleason and Milton Berle were all originally offered cameo roles.
- According to [?] Frank Sinatra Jr. on the DVD Commentary, Sammy Davis Jr. was forced to stay at a "colored only" hotel during the filming because Las Vegas would not allow blacks to stay at the major hotels despite his appearing with Frank Sinatra, Dean Martin, and the others at the Sands Hotel. He was only allowed to stay at the major hotels, therefore breaking Vegas' unofficial color barrier after Sinatra confronted the casino owners on his behalf.
- Possibly due to a journalistic mishearing, a Hollywood Reporter piece in August 1958 gave the title of the upcoming film as "Oceans of Loving".