Crusade: A March Through Time, also known as Crusade in Jeans is a 2006 film that was released on DVD in North America in 2008. It is based on the 1973 novel Crusade in Jeans, by Thea Beckman.
Synopsis: In the final minutes of the European football championship Dolf (Joe Flynn) misses a crucial shot at goal and knocks his team out of the competition. Feeling he can’t live with his mistake, Dolf breaks into his mother’s advanced physics laboratory which holds an experimental time machine. Intending to go back in time to replay the football match, Dolf accidentally sends himself to the 13th century. Here he meets the feisty Jenne and the 8000 children of the Children’s Crusade. After using his modern-day knowledge to aid the children in their march, he quickly becomes their leader. As the Crusade continues, Dolf must draw on all his strength, cunning and bravery to save the children from a sinister plot to enslave them.
The film is aimed at younger audiences, and has won several awards.