Task: Question Understanding
Input (English): Context : The Musketeer is a 2001 American film based on Alexandre Dumas's classic novel The Three Musketeers, directed by Peter Hyams and starring Catherine Deneuve, Mena Suvari, Stephen Rea, Tim Roth and Justin Chambers. 
Question : The The Musketeer is based upon what?
Output (English): based on