'Little Boy' trivia and fun facts

Kevin James met Eduardo Verástegui during the filming of this movie. The two got along so well that James wrote character in 'Superpoli en Las Vegas' (2015) specifically for Verástegui.

Emily Watson's second film that takes place during World War II. The other being La ladrona de libros (2013).

David Henrie (who plays the older brother of the main character), Eduardo Verástegui (Fr. Crispin) and Kevin James (Dr. Fox) all star in 'Superpoli en Las Vegas' (2015) together as well.

The earthquake in the movie really happened in real life in Los Angeles three months before the bomb detonation in Hiroshima.

Kevin James liked the script so much he agreed to do the film for free.