Angel's Egg (Tenshi no Tamago) - full OVA on YouTube

One of the few actually good anime movies, it's a shockingly sparse, surreal, and sublime art film following a young girl and a soldier in an abandoned city. Central to the film is the titular egg, which the young girl is convinced will someday hatch into a bird, while the soldier has doubts. Dripping with rich symbolism, it can be interpreted as a study of faith and makes both direct and oblique references to the classical Western films of Carl Theodor Dreyer, Roberto Rossellini, Andrei Tarkovsky, Robert Bresson, and Ingmar Bergman, who put such thematic elements front and center in their own work. In many ways, it functions as a litmus test for the viewer, as they are asked to project their own opinions of salvation and the transcendental onto the cryptic final few minutes.

It's well worth 72 minutes of your time to sit there, watch the ploddingly slow but immensely beautiful hand-drawn visuals and letting the hauntingly ethereal soundtrack create a cinematic experience. Also, that scream is one of the single rawest, most pained things I've heard in a film. A+ work for that sequence. Seriously, give this one a shot.