Factual error: The movie and events take place in 1958. However, two Fender amplifiers that are used by the band, "Johnny Casino and The Gamblers" are "Silverface" models that were only manufactured between 1967 and 1981.
Grease (1978)
Plot summary
Directed by: Randal Kleiser
Starring: John Travolta, Stockard Channing, Olivia Newton-John, Jeff Conaway, Kelly Ward, Michael Tucci
During a 1950's summer, good girl Sandy and greaser Danny fall in love until Sandy has to return home to Australia at the end of summer. By a twist of fate, Sandy moves back to the US and unknowingly attends the same high school as Danny. When her new friends introduce her to him again, he acts cool for his friends and makes her angry. The whole movie goes back and forth between him getting her back, and then losing her again, all leading up to when Danny, and his gang the T-birds, consisting of Sonny, Putzie, and his best friend, Kenickie, race Kenickie's car against Leo who is from a rival gang, whoever wins gets the loser's car. Can Danny win both the race and Sandy's heart?
More mistakes in Grease
Principal McGee: We have pictures of you so-called mooners. And just because the pictures aren't of your faces doesn't mean we can't identify you. At this very moment those pictures are on their way to Washington where the FBI has experts in this type of identification. If you turn yourselves in now, you may escape a Federal charge.
Trivia: John Travolta made up the "cool dude walk" that Danny uses in the first scenes, when trying to create a bad boy image.
Question: I can't understand why Sonny hauled Sandy off the dance floor during the dance finale. Sure Sonny was a bit of a jerk, but he idolized Danny and would never disrespect him. Also there was nothing to suggest that he and Cha-Cha were friends. I never truly understood.
Answer: He's fall-down drunk, that's why. He's drinking during the entire dance.
Answer: Because in real life Olivia was late for work, as a result Annette had to take Olivia's place because she was her understudy.
Answer: It's a terrible moment in the story because it exposes Danny as being thoughtless. After already burning Sandy once (at the pep rally) you'd think he'd be mindful of not doing it again. This time, though, he humiliates her in front of the entire school, as well as on television. Unsure how Sandy's sitting with him in the next scene at the drive-in only slightly miffed. Imagine how this plays as a story to their children: "Hey, kids, did I ever tell you about how your dad embarrassed me in front of everybody?" I guess it's meant to be partly motivation for Sandy to change her image and outlook in order to keep Danny, but it's a terrible message (even back then). She's nothing but thoughtful and considerate, and Danny repeatedly treats her badly, but she decides she needs to reinvent herself. (Danny's makeover doesn't count given it lasts about three minutes.) It would've been better had Danny and Sandy came second because of Sandy's dancing, and that could've played on her mind.
Answer: He is so upset about Marty liking Ed Byrnes, he just drinks all night.
Answer: I think it was because Sonny was drunk and wanted Sandy to talk to Marty for him since she dumped him for Vince Fontaine at the beginning of the dance.
Answer: Well my theory is maybe since Sonny wants a girl, Cha-Cha promised him a date with a girl if he agreed to her plan.
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Answer: Watched that scene again now and I just think it was poor writing (in what's still a classic film regardless). How none of the judges noticed that Cha Cha took another girl's (Sandy's) place even after she'd already been "tapped out" is another huge plot hole. Plus a lot of people in America were watching the dance on TV and it's not mentioned by anyone after this scene. 35 years later and that scene still bugs me (haha).