Defense Against Invasion (1943): cast, story & where to watch
1943 · Film · ★ 3.8

Released in 1943, Defense Against Invasion is an animation and documentary film directed by Jack King, running about 12 minutes.
What it’s about. A doctor persuades a group of boys to be vaccinated by explaining how it will protect them against disease. Animated sequences depict the body metaphorically as a city, defended by the blood cells, which are stimulated by vaccination to amass arms and ammunition, in order to defend the city when it is invaded by germs.
How it landed. With an audience score of 3.8/10, Defense Against Invasion has proved divisive with audiences.
Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch Defense Against Invasion page.
If you liked it. Fans of Defense Against Invasion tend to enjoy Spirited Away, Your Name., Grave of the Fireflies and Spider-Man: Into the Spider-Verse.
Frequently asked
- Where can I watch Defense Against Invasion (1943)?
- Streaming, rental and purchase options for Defense Against Invasion change frequently. Check our where-to-watch page for the latest availability in your country.
- Is Defense Against Invasion worth watching?
- Defense Against Invasion holds an audience score of 3.8 out of 10, and is a strong pick if you enjoy animation and documentary. Reactions are mixed, so it may depend on taste.
- When was Defense Against Invasion released?
- Defense Against Invasion was released in 1943, with a runtime of about 12 minutes.