What movie was modeled in the Seinfeld episode the Switch?

The Seinfeld episode "The Switch" was modeled after the movie "The Graduate." In this episode, George Costanza becomes infatuated with his friend's attractive mother, paralleling the storyline of Benjamin Braddock's affair with Mrs. Robinson in the film. The episode cleverly references themes of desire and the complexities of relationships, similar to those explored in "The Graduate."