Couple suggestions, not sure whether you want to add only movies you have seen or overall everything that has something to do with religion, but anyways:
Ben-Hur: A Tale of the Christ (1925) - Fred Niblo,
King of Kings (1927) - Cecil B. DeMille,
King of Kings (1961) - Nick Ray,
Nazarín (1959) - Luis Buñuel,
Greatest Story Ever Told (1965) - George Stevens,
The Passion of the Joan of Arc (1929) - Carl Th. Dreyer,
It's a Wonderful Life 1946) - Frank Capra,
Francesco, God's Jester (1950) - Roberto Rosselini,
Wise Blood (1979) - John Huston,
Elmer Gantry (1960) - Richard Brooks
These came to mind when read this list. Some of those are straight-out Christ epics and others little more loosely related to religion, though as you have such titles as Exorcist and Omen I thought they might do. :)
Ben-Hur: A Tale of the Christ (1925) - Fred Niblo,
King of Kings (1927) - Cecil B. DeMille,
King of Kings (1961) - Nick Ray,
Nazarín (1959) - Luis Buñuel,
Greatest Story Ever Told (1965) - George Stevens,
The Passion of the Joan of Arc (1929) - Carl Th. Dreyer,
It's a Wonderful Life 1946) - Frank Capra,
Francesco, God's Jester (1950) - Roberto Rosselini,
Wise Blood (1979) - John Huston,
Elmer Gantry (1960) - Richard Brooks
These came to mind when read this list. Some of those are straight-out Christ epics and others little more loosely related to religion, though as you have such titles as Exorcist and Omen I thought they might do. :)