[3] The film was the last in a trilogy of animated shorts by Pessoa about childhood, following A Noite (1999) and Tragic Story with Happy Ending (2005).

Kali the Little Vampire features original music from The Young Gods, and was produced by Abi Feijó (Ciclope Filmes), Julie Roy and René Chénier (National Film Board of Canada), Pascal Le Nôtre (Folimage) and Georges Schwizgebel and Claude Luyet (Studio GDS).

One day, while once again watching young boys play beside the train tracks, he breaks from his isolation and discovers that because of who—and what—he is, he can make a difference in others’ lives.

Kali the Little Vampire has won more than twenty awards at international film festivals and received the Portuguese Academy of Cinema's top "Sophia" award.

In June 2014, it was shown in Paris as part of Panorama of Golden Nights, a program organized by UNESCO featuring 48 short films from 25 countries judged to have international cultural heritage value.