Universal Pictures, founded in 1912, is one of Hollywood's major studios known for films like 'Jurassic Park' and 'Fast and Furious.' The company would be a suitable choice for a fantasy/science fiction thriller due to its strong track record in the genre, potential for high-budget production, and collaborations with renowned directors like Steven Spielberg. Alternatively, Shoebox Films, a small UK company established in 2012, focuses on low-budget projects and also targets a young audience with its marketing primarily through trailers and posters.