The Flock of Angels (1979)

Ingrid is a young high school student who due to the impact suffered by the death of his mother, is acting strangely causing concern to her teachers. After a landslide caused by heavy rains, police surrounded the premises of the high school to expel the refugees resulting in the classes suspended. When they resume, Ingrid throws herself into space from the top floor of the campus

Unfortunately the movie The Flock of Angels is not yet available on HBO Max.