Pretty much summed up in the title
https://archive.ph/7o673
https://www.thetimes.com/uk/society/article/film-about-trans-teen-will-be-shown-to-pupils-as-young-as-11-qc8g0bnnk
For LGBTetc. History Month. I'm not familiar with the particular organisation pushing it. There's so many and they seem pretty much interchangeable.
Not a criticism of the film's 'star'. I'm sure she's going through some things and, at least at the time the film was made, she's a child.