Brewster McCloud (1970)

Revealing mistake: When Brewster is flying around in the Astro-Dome at the end of the movie, in a close up you can see the cables attached to him for a good second or so.

The Lecturer: Social behavior. Schjelderup-Ebbe first used the word dominance in describing his observations on the social hierarchies of birds. He concluded that within a flock, composed of single species, there exists a definite order of social distinctions. And between any two birds, one invariably has precedence over the other.