If you're a fan of classic animation, I strongly recommend "Cartoons that Time Forgot, the Ub Iwerks Collection Vol. 2". But beware, these cartoons are not for kids! "Room Runners", one of my favorites in the collection, features a broke Flip the Frog trying to skip out on his hotel bill. When you see Flip, at one point utter "Damn!", you realize that these cartoons were made in a time before ratings committees, and political correctness. Equally surprising, especially to those of us who are used to the cartoons we saw as kids, is Iwerks' frequent use of women in sexually suggestive ways, like at one point, when Flip peers through a keyhole and catches a nude woman drying off, as seen from behind, covered only barely by a towel deftly swishing back and forth across her rear.
Another feature of Iwerks' work is the use of music, and timing most of the action in his cartoons to the beat of the music. And this, in a time when animation was still fairly new, and sound on film was even newer!