Tulips Shall Grow is a 1942 American animated short film in the Puppetoons series, directed by George Pal and starring Rex Ingram and Victor Jory.
[1] It was released by Paramount Pictures[2] and originally photographed in 3-strip Technicolor.
A Dutch boy named Jan and a Dutch girl named Janette find their idyllic existence destroyed when they are overrun by a group of Nazi-like mechanical men called "The Screwballs", who lay waste to everything they touch.
The Screwballs are later destroyed by a thunderstorm (the rain of which causes them to rust) and Jan and Janette's idyllic life resumes.
In 1997, the film was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".