Willoughby's Magic Hat (1943)

Delilah knits the hair from Samson into a hat. The hat gives its wearer super strength: Hercules, Samson, and in the modern day, the nebbishy Willoughby Wren. Willoughby decides he needs to put this power to good use, and sets about rescuing a fair maiden who is being menaced by a giant evil robot. The problem is, his hat keeps falling off at inopportune moments.