The British banned it on release. French Catholics attempted to suppress it because the director was neither French nor Catholic. It was a critical failure that led to three years of litigation between director and studio.
It contains possibly the finest example of acting talent in the history of cinema.
Carl Dreyer's silent 1928 film The Passion of Joan of Arc is an emotional and brilliant biography adapted from the actual transcripts of Joan of Arc's trial. As masterfully directed as it is, the film owes so much to it's star Renée Jeanne Falconetti, who had a background in light stage comedies and never acted in any another film yet delivers the finest dramatic performance I've ever seen.
It's amazing, and it's this week's episode of Lost in Criterion.