The actor, 70, and Jolie, 50, were married from 2000 to 2003, with Thornton attributing their separation to their differing lifestyles.
Thornton clarified the public fascination surrounding their relationship, including the widely reported blood vial story, which he described as a "romantic little idea" that was exaggerated by the media.
The couple met while filming Pushing Tin in 1999 and eloped in Las Vegas.
Thornton is now married to his sixth wife, Connie Angland, while Jolie recently finalised her divorce from Brad Pitt in December 2024.