In 1999 Sophie's World was adapted into a Norwegian movie by screenwriter Petter Skavlan. It was not widely released outside of Norway. Kjersti Holmen won an Amanda Award for her role in the movie.
The 1999 movie was also presented as an eight-part TV series in Australia and Iceland, again scripted by Petter Skavlan.
It was also adapted for television in 1995 by Paul Greengrass and shown on the BBC as part of The Late Show. This version starred Jessica Marshall-Gardiner as Sophie, Jim Carter as Albert Knox, and Twiggy as Sophie's Mother.
In 1998 it was adapted into a PC and Mac CD-ROM game by The MultiMedia Corporation.
English space rock band Spiritualized named their 1997 studio album Ladies and Gentlemen We Are Floating in Space after a line in the novel.