I'm a huge fan of the composer Mauricio Kagel and so I was excited to see that some (of his many) films are now available online. You'll find them here.
Most tasty is his "Ludwing Van" (An epic meditation on deafness, loudness, musical wallpaper, costumes, and of course Beethoven. ) and "Solo and Duo" (sycho-dramas of musicians, and audiences worst nightmares, a series of absurd scenarios, electric guitar solos on the subway, mannequins hogging bathroom stalls and conductors lost in a melting environment of absolute resistance. )
A remarkable conversation/interview with Kagel can be found here.