I just watched The Beatles Yellow Submarine - the animated film from 1968 - with my bro. Seriously, such a seriously groovy movie. Classic music and good everything - hilarious as ever if you get the subtle references in it. The art is fantastic as well - a feast for the eyes.
Here is Lucy In The Sky With Diamonds which has the most amazing kaleidoscope effects - watch the dancing ladies!
Please, do yourself a favor and see this movie. You will not be disappointed.