The Way Back

The Way Back is a 2010 American survival drama film directed by Peter Weir, from a screenplay by Weir and Keith Clarke. The film is inspired by The Long Walk (1956), the memoir by former Polish prisoner of war Sławomir Rawicz, who claimed to have escaped from a Soviet Gulag and walked 4,000 miles to freedom in World War II. The film stars Jim Sturgess, Colin Farrell, Ed Harris, and Saoirse Ronan, with Alexandru Potocean, Sebastian Urzendowsky, Gustaf Skarsgård, Dragoș Bucur and Mark Strong.

Question: is the movie the way back based on a true story
Answer: yes