[jterrys]

From ze vikipedia pages of Simon und Garfunkel:

>Garfunkel began acting, and played Captain Nately in the Nichols film Catch-22 (1970). Simon was to play the character of Dunbar, but screenwriter Buck Henry felt the film was already crowded with characters and wrote Simon's part out.[83][84] Filming began in January 1969 and lasted about eight months, longer than expected.[85][86] The production endangered the duo's relationship;

Entirely possible since they weren't making music, touring or doing fuckall but wait for their part in the movie. Garfunkel's character doesn't have particularly crazy amounts of screen time either.