Once you get into the mindset that you are going to be watching a very cheesy 70's musical there is no way you cannot enjoy this film. The dialogue is nothing amazing and it is very cheesy, but it works because the film embraces what it is rather than trying to have completely serious interactions. The comedy all works and although some of it is very exaggerated and rather silly it still feels very natural as this group of friends have so much chemistry and fun together. The quick one liners are where a lot of the comedy comes from, some of which are so quick that you might miss and pick up on the next viewing. It all comes down to the very well written characters, all of whom have very distinct and different personalities that clash and make for many very entertaining scenes. And despite there being a lot of characters, you never feel as though any of them are being completely ignored as each one is given a presence in the film, some larger than others but you feel like you know all of them.
If you have seen a few musicals, the plot of this film is absolutely nothing you haven't seen before, and it definitely plays out how you would expect it to, but it is not at all a bad thing. When you are having fun, laughing at the jokes, and singing along with the songs, the plot becomes an afterthought and you don't think about it too much, you just enjoy the film. The pacing of the film is something that personally doesn't bother me but for newcomers to the film it is probably going to be the deciding factor in whether they enjoy it or not. Some sections of the film it do slow down and they delve a little more into the romantic elements of the film which are crucial to seeing the journey these characters take throughout the film. But if you aren't as invested in these characters you won't respond to these sequences very well.
So in the end, Grease is a high school rom/com classic in the musical genre and is something that generations today can still watch and enjoy, one of the best of all time. Personally this one of my most watched films of all time believe it or not. You have your romance, your comedy, and most importantly those songs that will never leave your head whether you want them to or not. It's such a very energetic film with a talented cast and there is just an all round very good time to be had with this film.
Grease's appeal is mostly in its style, its entertainment value and it's youthful energy. It's really fun to get absorbed in this ultra vintage world, dripping with the 1950's American pop culture. It's crawling with greasers, cheerleaders, jocks in their pristine varsity jackets, jukeboxes and malt shops. Almost all of the songs are fun and infectious and the dancing is really good. The Grease Lightning scene is among the coolest sequences I've ever seen, with its electric dance and classic number. The central romance is pretty trivial, but it's somehow a lot of fun to watch them because Travolta and Newton-John work really well together. Grease also has a lot of zip and exciting energy. It has never seemed so fun or intense to be a teenager.
There are some other things in the film that intrigued me. I think John Travolta's performance was really good because his inner struggle provides the only conflict in the story. Grease really doesn't have any concrete plot and the only thing we know besides the fact that Danny likes Sandy is that he can't figure out if he's a sensitive boyfriend or a super cool greaser because the two don't mix. I also didn't expect the film to be so adult, with its blatant inclusion of alcohol and sex in the high school setting. The greasers drive around drinking beers and sipping liquor at the dance, Rizzo has sex and gets pregnant. One really fascinating scene was where Danny agrees to ride with his best friend in the drag race, and they hug in such a way that it really seems like they're going to kiss. They don't, but the film hints at what lies underneath the boys' tough personas, maybe some repressed emotion or even homosexuality.
As for the things I didn't like about the movie, the most glaring problem is the absence of a plot. If anyone asked me about Grease's narrative structure, it'd be hard to describe anything more than a random collection of events, most likely out of order. What's the theme? I don't know, maybe young love and youthful ignorance. It's also still just a little too whimsical and theatrical for me. Some of the hair colors, characters and dialogue are pretty ridiculous. There were some very creepy moments, too. The news reporter blatantly seduces a young teenage girl, Rizzo makes a joke about that same guy slipping drugs in her drink and the most disturbing was when Danny molests Sandy at the drive-ins. And then he proceeds to sing a song, wondering why Sandy didn't let him molest her. What? That song and one or two others were annoying. I also really didn't like that after Danny went and molested Sandy, the final scene has Sandy completely change her look to perfectly suit what Danny wants. It sends a really bad message about women and gender roles (even if it is weirdly hot). Grease is a lot of fun and features some amazing scenes, but there are some details that subtract from the overall experience.
For this romantic, coming-of-age musical premise to succeed all they had to do was choreograph a little dancing, move the camera occasionally, and throw a winning pair of young leads on screen. It's nice to be able to say that the filmmakers went above and beyond to create something far better than the written source material. They made a good movie that, though it could've been a great movie, did undeniably satisfy me.
Overall, "Grease" is a fun little gem with a lot to offer it's demographic.