This was a great film. I absolutely loved the "kooky" family that Alice belonged to and the cyclical relationships between the characters. And who doesn't love a good courtroom scene a la Miracle on 34th Street. I would definitely recommend it.
The moive was supposed to be a four hour Technicolor epic (think Gone With the Wind)
It was supposed to be filmed on location in Wales (the setting of the film)
Because of WWII, the movie could not be filmed in Wales because of the threat of attack, so it was instead filmed in the California desert. This desert is brown and not the lush green of Wales (hence How Green Was My Valley) and so instead it had to be filmed in black and white in order to appear green.
Next on the list?
Yeah, I've seen it, but as Adam likes to point out, I actually fell asleep for the last 15 minutes, and therefore, haven't really seen it.