Kevin Gullberg was born in 1993 in Norrköping, Sweden where he grew up. In 2012, he started the production company Kojan Film with his friends from high school. Together they made commercials for increasingly large brands in Sweden with a focus on practical effects. Gullberg produced a commercial for Morakniv which won both the Swedish Design Award and Publishing Award in 2020. He also produced a short documentary about wrestling for the Swedish state television channel SVT, which garnered more than 1,5 million views.
In 2016, Gullberg and his collegue Simon Öster began experimenting with creating space images by lighting colored liquids in a water tank. This became the starting point for a new sci-fi short film, Lost in the Sky, which was made entirely with practical effects. After four years of development with minimal funding, the project received support from the Swedish Film Institute in order to be completed. Six years in the making, this is Kevin Gullberg's producing and writing debut. It had it's world premiere at Hard:Line International Film Festival in Germany, where it became the first film in the festival's history to win both the Méliès d'argent for Best European Fantastic Short Film and the Audience Award for Best Short Film.