Article from the LA Times (subscription required) - May 6, 2005
Disneyland Marks Its Big 5-0

Some devotees of the amusement park camp overnight to be a part of the official start of the celebration.

Beneath drizzling skies that even Walt couldn't have controlled, Disneyland launched its 50th anniversary celebration Thursday, drawing a crush of fans and underscoring the enduring magic of the cultural landmark.

Some camped overnight in their cars. Thousands had lined up by the time the park opened at 8:30 a.m. Youngsters pressed their faces against the wrought-iron gates to steal glimpses inside.
But Thursday, the focus was on Disneyland, where 1,200 media personnel covered the likes of Aladdin arriving on a camel, Stitch being escorted by Anaheim motorcycle officers, and Goofy and Mickey driving up in Herbie the Love Bug.