All this week, ET is spotlighting our top five summer romance movies: ‘Dirty Dancing,’ ‘The Graduate,’ ‘Grease,’ ‘Pretty Woman’ and ‘Titanic.’

Koo-koo-ka-choo, Mrs. Robinson! When ‘The Graduate’ hit movie theaters in 1967, it made DUSTIN HOFFMAN a bonafide star and catapulted SIMON & GARFUNKEL’s theme song to the top of the charts. Now, ET has fascinating details you may have never known about the movie!

Directed by MIKE NICHOLS, the critically-acclaimed film chronicles recent college graduate Benjamin Braddock’s (Hoffman) boredom and disillusionment with entering the "real world" and his affair with an older married woman, Mrs. Robinson (ANNE BANCROFT).

ROBERT REDFORD was the initial casting choice to play Benjamin Braddock, with screen legends LANA TURNER, AVA GARDNER and RITA HAYWORTH reportedly eyed to play Mrs. Robinson and CANDICE BERGEN as her overprotected daughter, Elaine. GENE HACKMAN was even set to play Mrs. Robinson’s husband, but was fired from the film early on when they decided he looked too young.