Z (deleted from UK DVD catalogue much to my disappointment)
L'Armee des Ombres
Coup de Torchon/Clean Slate (pretty much anything with Philippe Noiret)
Des Hommes des Dieux
Christ Stopped at Eboli
Bombon el Perro
Turtles can Fly
La Cage aux Folles probably my favourite
I'm always filled with guilt for publicly admitting I like La Cage aux Folles.
For me, it has to be anything by Kurosawa or Almodovar.