The script is based on the works of author Leslie Charteris, focusing on master thief/vigilante 'Simon Templar'.
The character has been featured in a long-running series of books by Charteris published between 1928 and 1963.
Rko owns the rights to several films based on "The Saint", including the 1938 feature "The Saint in New York".
"The Saint" has previously been adapted for several motion pictures, radio dramas, comic strips, comic books and three television series.
Templar is known as 'The Saint' because of his initials (St) and because his heroic exploits fly in the face of an otherwise nefarious reputation. Templar has aliases, often using the initials 'S.T.' such as 'Sebastian Tombs' or 'Sugarman Treacle'.