A magic hat causes all sorts of trouble for Mickey, Pluto, Donald and the performers in Mickey's Grand Opera. Overall, this short film felt a little disconnected--like a bunch of bits were just stuck together and filled with opera/music stuff. I like the gag of the hat falling into the tuba, but most of the rest was stuff you see all the time--chases, characters getting knocked over, etc. Mickey gets upstaged by just about everyone, it is almost as if he were the extra character in this short.
This Disney short can be watched here: Mickey's Grand Opera (1936)
Released March 7, 1936