The Ending - SPOILERS
This for me is one of Fassbinder's best films but the ending is especially brilliant. Fassbinder really showed how brave a director he was and the last shot is so unflinching and strange that I can't think of many others who would dare to let a scene like that run on for so long. And the music (So Much Tenderness by Günther Kaufmann and absolutely perfect for the scene) just keeps on going and going, continuing right when you think it's going to end.
Watching the two men almost wrestle obviously has homoerotic undertones but it also shows human desperation in the face of death. Though he has been killed, his brother tries to shake him to life. It is difficult to tell which of them is alive and which is dead while their mother in black (and prophetically dressed for a funeral) stands motionless over them like some kind of ghost. One of the most haunting final scenes I've ever seen.