"Dark Blue World" is a 2001 Czech film directed by Jan Svěrák. The story is set during World War II and follows a young Czech pilot, František, who escapes to Britain to join the Royal Air Force. The film explores themes of love, loyalty, and the impact of war on personal relationships. The narrative centers around František's friendship with fellow pilot Karel and their mutual affection for Eliška, a woman they both love. As the war progresses, their bonds are tested, highlighting the emotional struggles faced by those caught in the turmoil of conflict.