- B-Team Sequel: Not only did John Travolta and Olivia Newton-John not return, but director Randal Kleiser and writer Bronte Woodard had no involvement.
- Disowned Adaptation: Jim Jacobs, who created the original play, described this movie as "awful... the pits.".
- Deleted Scene: Several scenes were cut from the film, including:
- Frenchy trying to help Michael become a "cool rider".
- Michael talking to Stephanie and comforting her after the talent show.
- Goose accidentally slamming a door into Rhonda's nose.
- Davey helping Dolores stuff her bra at the luau so that she can be dating material for him.
- A sequence at the very end where Michael and Stephanie fly off into the sunset on a motorcycle, similar to the ending of the first film, where Danny and Sandy fly off into the sunset in a car.
- Franchise Killer: The failure of this prevented further Sequelitis. There were studio plans of having at least three more sequels and a TV series, but they were instantly scrapped after this film bombed.
- Hostility on the Set: Maxwell Caufield and Michelle Pfeiffer didn't get on at all. He found her stuck up, while she thought he was full of himself.
- Old Shame: Michelle Pfeiffer joked that she showed the film to her kids and they turned it off after twenty minutes. While filming Stardust, Matthew Vaughn told her that this was his favourite film of hers, her response was a Flat "What".I thought he was pulling my leg... It was my role in that that made him want to work with me.
- Recursive Adaptation/ Screen-to-Stage Adaptation: Guy Unsworth adapted it into a stage musical titled, Cool Rider.
- Star-Derailing Role:
- Maxwell Caulfield blamed this film for killing his budding Hollywood career. After the movie bombed, Paramount dropped his contract. In his own words, "It took me ten years to get over Grease 2." (He did find relative success on the Dynasty spin-off The Colbys only three years after this film.)
- Michelle Pfeiffer's career nearly suffered this because she was initially considered to be rejected from working on Scarface (1983).
- What Could Have Been:
- Paramount was envisioning up to three more sequels and possibly a TV series. Would Grease 3 have worked with the mid-Sixties and British Invasion music as a backdrop? Would Grease 4 have dealt with hippies? Would there have been a Seventies version, sorta like Dazed and Confused with musical numbers? We'll never know.
- Grease: The TV Series would most likely have been Happy Days meets Glee.
- Tom Cruise auditioned for Johnny Nogerelli, but director Patricia Birch wanted someone older and taller.
- Andy Gibb was initially going to play the male lead, but he failed his screen test. Cher initially signed on to play Paulette Rebchuck, but backed out, complaining of a low salary and not having a finished script. Jennifer Beals signed on to play Sharon Cooper, but dropped out to play the lead character in Flashdance.
- Debbie Harry was initially asked to play Stephanie Zinone. She declined, saying she was too old to play a high school student.
- John Travolta and Music.Olivia Newton John were expected to reprise their roles as Danny and Sandy, now married and running a gas station, but nothing came of it. There were also plans for Jeff Conway and Stockard Channing to have a cameo. According to Didi Conn in a May 2018 interview, a direct sequel was always intended and a line of dialogue about "see you in summer school" at the end of the first movie was intended to be the Sequel Hook, but the studio expected the film to be no more than a moderate one-off hit; by the time it became clear that the film more than justified a sequel, the original cast were not available to film a sequel.
- You Look Familiar: Johnny's actor, Adrian Zmed had previously played Danny in a stage productions of Grease.
Trivia / Grease 2