The "McDowell's" restaurant was actually a Wendy's on Queens Blvd. that was scheduled to be closed for a complete renovation. Although the production had approval from McDonald's corporate headquarters, they apparently didn't pass the word down to their local outlets. On the day the "McDowell's" sign was erected, the manager of the McDonald's 1/2 mile further up the road arrived with his lawyer and proceeded to take photographs while telling the set dressing crew they were going to be sued for everything they were worth.
Most of the dance that's performed by the royal dancers before presenting Prince Akeem's queen-to-be is a high-tempo rendition of the dance from Michael Jackson's Thriller (1983) (also directed by John Landis).
Director John Landis and Eddie Murphy did not get along and Murphy vowed to never work with Landis again. However, the two later reconciled and Eddie personally asked John to direct Beverly Hills Cop 3.
A television pilot of a weekly sitcom version of the film was produced for CBS following this film's successful release. The series starred Tommy Davidson as Prince Tariq, and Paul Bates reprised his role as Oha. The pilot went unsold, but was televised on July 4, 1989 as an episode of CBS Summer Playhouse (1987).
When King Jaffe Joffer (James Earl Jones) visits New York to bring Akeem back home, he wears a lion skin sash. Years later Jones would portray the voice of the lion king Mufasa in Disney's The Lion King (1994). Madge Sinclair (Queen Aoleon) would also star alongside Jones in The Lion King as Mufasa's wife, the lioness queen Serabi.
The name of the fictional African country the main characters are from is called "Zamunda". This name was taken from a Richard Pryor routine where he referred to a fictional African tribe of the same name.
LOGO GIMMICK: After the stars circle around the Paramount mountain and "Paramount" and "A Gulf+Western Company" appear, the sky becomes sunnier (pink to yellow) and the camera zooms in over the mountain summit. We then see a valley/terrain and the opening credits begin.
When Prince Akeem (Eddie Murphy) goes to sit with the King and Queen at the breakfast table, the King is surprised to find out that Akeem had grown a mustache. In Beverly Hills Cop (1984), when Axel (also played by Murphy) visits Jenny Summers at the art gallery where she works, she is just as surprised to find out that he grew a mustache.
A scene featured in this movie's theatrical trailer but was cut from the final film shows Cleo McDowell, Akeem, and Semmi walking into Cleo's office where he asks them if either of them have had any fast food work experience, to which Semmi quizzically responds "Certainly not!". Akeem then proceeds to lightly nudge Semmi and then responds to Cleo telling him that this is their first job in the United States.
[look to camera]
When Patricia tells Daryl he needs to take off his wet clothes after he tells her that Lisa dumped him, he looks directly into the camera. Also, at the Mcdowels' house and Leo's daughter says "Why does she always get the good ones?", the dog does the same thing.