Matt Damon disclosed the disciplined diet that helped manage underlying health issues, calling it life-changing as he prepared Christopher Nolan's the film at age 55.
He trained remarkably in a new way for this role compared to his Jason Bourne films, and consulted an down‑under friend for preparation.
Damon described The Odyssey as the most demanding production of his professional journey, measuring its strain to six or seven movies combined.
Nolan reportedly converted a real cave tied to the mythic home of Zeus into part of the film set.