The basic story is that Paige and her brother, who wrestle in their family's small promotion in Norwich, England, are trying to get a tryout with the WWE. They get a tryout, and she is picked to go to WWE's developmental unit in the United States, and he does not. So it becomes a fish out of water story as she tries to make her break while her brother deals with being left behind at home. It mostly skips her rise to popularity in NXT, just showing her training and getting adjusted to life as a pro wrestler for the WWE, then ends with a very fictionalized version of her first match on the main roster. For a film about pro wrestling, it is very well done. It is an excellent combination of funny and heartfelt and takes a story about a profession that is over-the-top in absurdity at times very seriously.
The A/V quality of the Blu-Ray is very good, especially for a movie that does not make use of CGI or special effects. The extras consist of about 8 minutes of deleted and extended scenes, an 8-minute (give or take) making-of featurette, a gag reel, and a feature commentary track with the director. There are also two versions of the movie, the theatrical version as well as a director's cut. There was not much bonus material, but what was included was good. It would have been nice if Paige and Florence Pugh had been included on the commentary track instead of just the director.
Overall, it is a good movie. It is enjoyable even if you are not a huge fan of professional wrestling, but I think the people who enjoy it the most will be pro-wrestling fans. For those who are more old-school WWE/WWF fans, some clips from "back in the day" get sprinkled throughout the movie, and some cameos with some of the main roster WWE stars aside from The Rock. It is definitely worth checking out.