I like the alien twist on Ants in Pants.

Charlie and the Chocolate Factory 2 - an aged Charlie Bucket (played by William Shatner) holds a contest to find an heir to take over the factory. Striking Oompa Loompas, forced out by mechanization, provide welcome but odd musical interludes about collective bargaining and the scourge of gourmet chocolates. Shatner's singing of "Pure Imagination" on the backdrop of assembly lines reveals a man who has become as bitter and salty as his line of dark chocolate with sea salt. The dramatic finale builds with Oompa Loompas storming the gates and Charlie facing the man he has become.