Silent Running (1972): Three robots are better than one (video review)

Robots: Legged service robots

What it gets right about robotics: Distributed multi-robot coordination and control

Recommended watching: Silent Running is a must see for any robotics aficionado. The whole family can watch but little ones (and non-scifi fans) will likely be bored out of their minds. Treat it as a MST3K event to keep the family or friends engaged.