Fatih Sultan Muhammad is a feature-length animated film about the Fall of Constantinople to Ottoman Sultan Muhammad II, narrated from the Ottoman perspective.
The original film was in Turkish - an English translation was produced by Astrolabe Pictures http://www.wrmea.org/wrmea-archives/190-washington-report-archives-1994-1999/december-1997/2767-astrolabe-pictures-major-source-of-islamic-entertainment-and-educational-multimedia-products-.html, a small firm based in Herndon, Virginia marketing films to American Muslims. This film talks about the struggles the Turkish people had faced in order to conquer Constantinople (Istanbul).