While it may be too weird for some, The Beatles 'Yellow Submarine' is a classic film. It epitomizes the '60s as it pushes the boundaries of the medium while at the same time the ideas and execution are timeless, giving the film a modern feel even as its 45th anniversary approaches next year.
There's so much going on visually one viewing isn't enough to take it all in. Not only do the songs and animation make it a trip worth retaking, so do the high quality A.V specs of the Blu-ray. I'm anticipating it making some "best of the year" lists.