Disney's released a DVD about Disneyland in its excellent commemorative Walt Disney Treasures series: Disneyland USA. The disc — narrated by Leonard Maltin — collects several of the infomercials Walt produced to raise the capital for the Park (Roy, his brother, controlled the company purse-strings and wouldn't finance the venture), including The Disneyland Story, Dateline Disneyland, Operation Disneyland, Disneyland After Dark and the 10th Anniversary Special. The disc also has a bunch of archival rarities and commentary. Can't wait to get my hands on it!
(Thanks, Robynne!)