# Knock Knock

> 1940 film by Walter Lantz

**Wikidata**: [Q3066819](https://www.wikidata.org/wiki/Q3066819)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Knock_Knock_(1940_film))  
**Source**: https://4ort.xyz/entity/knock-knock-q3066819


## References

1. Animation: A World History: Volume I: Foundations - The Golden Age
2. The Big Cartoon DataBase
3. Freebase Data Dumps. 2013
4. Online-Filmdatenbank
5. The Movie Database
6. [Source](https://letterboxd.com/tmdb/87244)
7. Trakt.tv