The Criterion Channel is great however, even it is only half the service.
I was able to watch Agnes Varda's Cleo From 5 to 7 last night and it was a brilliant film. But the 1/2 hour interview with Varda and the stars of the movie which followed it truly enriched the experience. It is well worth the money if you are a cineaste. Like FlimStruck, it can be an education in cinema.