Other mistake: During the yard sale, in the first shot of Donnie's area where he has all his sports stuff, the sign behind him reads "Donny's Corner". "Donnie" is misspelled here. In all the shots after this one, there are sneakers, or some other equipment hanging over the "y's", hiding the spelling mistake.
Other mistake: If you look on Disk Three, in the Features section, select "Behind the Tunes", you'll see three titles: "Too fast, too furry-ous", "Blanc Expressions", and "Merrie Melodies: Carl Stalling and Cartoon Misic". Misic? Just to be sure I unloaded the DVD player software and rebooted. Nope, still there. How did THAT get past quality control? Should be "music", in case you're wondering.
Other mistake: When Viper slides the swords to Jackie and they come to a rest next to him, there is a small paper spider right beside Jackie. The only paper spider in the room, however, is Origami himself, and he is actually too far away at that moment and too big to fit the bill. Guess some of the animators got their depth perception messed up.