I don't know why this info isn't wider spread. I didn't even know about it until I was invited to go last night. But anyway, the El Capitan is showing Dumbo on the big screen right now! It's awesome being able to view all those watercolor backgrounds up close and in detail. If memory serves... I don't think Disney did watercolor backgrounds again until Lilo & Stitch.
Anyway, there's my recommendation to you for the holiday weekend. Go see Dumbo!