I found this on Screamscape and did a search and didn't see it here.
http://www.mahalo.com/Disneyland_Dream_1956
It's a link to a video from a family that won a promotion for a trip to Los Angeles and Disneyland in 1956. And it's in color. It is really neat to see Knotts and Disneyland back then and hearing them talking about driving through all the orange groves made me laugh. I'm 29 and lived in OC my entire life and i can't even remember the last orange grove i saw. lol.
It's 34 minutes long and the part about Disneyland doesn't start until the 19 minute mark, but if you ever wanted to see Los Angeles back then, check it out.
-G-to-the-Mouth