Although Mrs. Robinson is supposed to be much older than Benjamin, Anne Bancroft and Dustin Hoffman are just under six years apart in age. He looked naturally boyish, and she was made up to look older. For the same reason, Bancroft was only 8 years older than her "daughter" Katharine Ross, William Daniels (Mr. Braddock) only 10 years older than his "son" Hoffman.
Apparently, Dustin Hoffman's screen test consisted of him fumbling his lines and awkwardly trying to grab Katharine Ross's behind, which angered her. As he left thinking he didn't get the role, his awkwardness was just what director Mike Nichols needed for Benjamin Braddock.
At the AFI tribute to Mike Nichols, Dustin Hoffman recounted that when he was first called to discuss auditioning for the role of Benjamin, he told Nichols that he thought he was being made fun of a little, considering how "wrong" he seemed for the character described in the source novel. "'It the book says he's five-foot-eleven or something, and he's a track star, and he's head of the debating club, and he's from Boston or something, he's a WASP, and I... it feels like this is a dirty trick, sir.' And in his inimitable way, he says, 'You mean, you're Jewish'. And I said, 'Yes'. 'And that's why you don't think you're right.' I said, 'Yes'. And he said, 'Well maybe he's Jewish inside'. And I then got the part, after a screen test."
In Dustin Hoffman and Anne Bancroft's first encounter in the hotel room, Bancroft did not know that Hoffman was going to grab her breast. Hoffman decided offscreen to do it, because it reminded him of schoolboys trying to nonchalantly grab girls' breasts in the hall by pretending to put their jackets on. When Hoffman did it onscreen, director Mike Nichols began laughing loudly offscreen. Hoffman began to laugh as well, so rather than stop the scene, he turned away from the camera and walked to the wall. Hoffman banged his head on the wall, trying to stop laughing, and Nichols thought it was so funny, he left it in.
In 2007, the American Film Institute ranked this as the #17 Greatest Movie of All Time.
In the famous promotional still for this film, Dustin Hoffman is seen in the background framed by Mrs. Robinson's shapely leg. The leg in that photo didn't belong to Anne Bancroft, however; it belonged to a then-unknown model, Linda Gray, who later played Mrs. Robinson in a London stage musical of The Graduate.
In the novel, Ben interrupted the wedding before Elaine said I do. However, Mike Nichols decided to have Ben arrive after Elaine had gotten married.
None of the older characters has their first name identified in the film; only the younger characters of Benjamin, Elaine and Carl do, increasing the sense of a generation gap.
On Inside the Actors Studio, director Mike Nichols claims that the final "sobering" emotion that Benjamin and Elaine go through was due to the fact that he had just been shouting at the two of them to laugh in the scene. The actors were so scared that after laughing they stopped, scared. Nichols liked it so much, he kept it.
Other actresses considered for the part of Elaine were Natalie Wood (who turned it down) and Candice Bergen (who auditioned but did not get the part).
Some of the scenes of Benjamin in "Berkeley" were actually filmed at the UCLA (University of California, Los Angeles) and USC (University of Southern California).
Sources vary on precisely what the truth is about the possibility of Doris Day playing Mrs. Robinson. One rumor says the property was acquired with her in mind as Mrs. Robinson, and producer Lawrence Turman sent the novel to her manager/husband, Martin Melcher, wanting to know their opinion of Day in the role, but Melcher was so disgusted by the thought that he refused to even mention it to her. Doris Day wrote in her 1975 memoir, which is probably more accurate, that she was actually offered the role, but "I could not see myself rolling around in the sheets with a young man half my age whom I'd seduced".
The model frogman in the aquarium is toppled over when Mrs. Robinson tosses in the keys.
The movie is full of womb imagery. From Benjamin's constant desire to stay immersed in his parent's swimming pool, to the slow close-up shot of the hips of Katherine's roommate as she brings the "Dear John" letter to Benjamin, to returning to the actual womb of the elder and maternal Mrs. Robinson.
The movie's line "Mrs. Robinson, you're trying to seduce me. Aren't you?" was voted as the #63 movie quote by the American Film Institute (out of 100), as the #5 of Premiere's "100 Greatest Movie Lines" (2007).
The movie's line "Plastics." was voted as the #42 movie quote by the American Film Institute (out of 100).
The name plate on the hotel desk reads "Mr. Kranze". Don Kranze was the film's assistant director.
The red, Italian sports car which Benjamin drives throughout the movie is a 1966 Alfa Romeo Spider 1600 also known as the Duetto.
Two interesting camera techniques are used in the film. In the scene where Benjamin is running, he is shown at some distance running straight at the camera, an effect which makes him look as if he getting nowhere as he's running. (This technique is accomplished with a very long telephoto lens, which foreshortens distances in relation to the camera.) In another scene, Benjamin is walking from the right side of the screen to the left, while everyone else in the scene is moving from left to right. In western culture, things that move left to right seem natural (think of the direction you read words on a page), those that move right to left seem to be going the wrong way. These two visual techniques echo the themes of the film, Benjamin is going the wrong way, and getting nowhere in life.
When Dustin Hoffman showed up at Joseph E. Levine's office for a casting interview, the producer mistook him for a window cleaner, so Hoffman, in character, cleaned a window.