Continuity mistake: As Benjamin approaches their house, Mrs. Robinson gets into the car and threatens to tell Elaine about their affair. Benjamin gets out of his car in the pouring rain and runs to the Robinson house and if you look closely he runs out from under the rain making machine about thirty feet from the car. (01:08:50)????
Continuity mistake: Benjamin pulls a cross off the window of the church and uses it to lock the people inside the church. If you look closely when we see the church from the outside the cross is not there and before he pulls it off the window there's a curtain in front of it, which disappears between shots. (01:43:15)????
Continuity mistake: In the last shot of Benjamin and Elaine inside the bus he's facing forward and she's sitting slightly to the right of the center window divider on the back of the bus. In the next shot he's sitting sideways with his arm resting on the top of the back seat and she's moved about eight inches to the right. (01:44:45)????
Continuity mistake: When Benjamin is in his apartment, there is a Coors can on top of the refrigerator. When the camera comes back to the refrigerator, the can is gone.
Continuity mistake: After Mrs. Robinson corners him in Elaine's room, Benjamin runs down stairs and picks up his drink just before Mr. Robinson walks through the front door. When we saw the drink earlier as he put it down just before they went up to see Elaine's picture, it was half full, now it's empty with a few ice cubes in it. (00:16:40)????
Continuity mistake: Mr. Robinson sits in Benjamin's apartment waiting for him by the window as he smokes a cigar. In the first shot of this scene the cigar is lit, he never puts it out but several seconds later we see it again and it isn't. Then in the shot after that we see smoke blowing through the air as we look at Benjamin face. (01:31:30)????
Continuity mistake: As he leaves the apartment Mr. McCleery tells Benjamin to, "get out of here". If you look closely at the light fixture over the pay phone in front of him you'll see it only has one light on it. In the next shot as he rounds the staircase we see it again and there are two lights on it. (01:33:15)????
Continuity mistake: In the hotel room Mrs. Robinson makes Benjamin promise that he will never take Elaine out. If you look closely the purple chair in the middle of the room has been moved out about a foot away from the wall so that it's now blocking her line of sight and obscuring the bottom of the lamp that's in front of the window. When we saw this spot before as they were lying in bed the bottom of the lamp could easily be seen from the bed. (00:54:05)????
Continuity mistake: Benjamin and Mrs. Robinson have a rendezvous and while they're in bed he gets her to talk about where Elaine was conceived. She turns out the light and the conversation continues a while in the dark until Benjamin indicates that he might take Elaine out on a date. She turns on the light again and gets ready to rip his head off and two drinks appear where there were none before under the lamp on the left of the screen. (00:49:40)????
Continuity mistake: After Benjamin and Mrs. Robinson have a fight about Elaine she sits on the side of the bed putting on her stockings as she gets ready to leave. Benjamin says, "Oh no, look I like you" and in the next shot as the camera shifts angles a chair appears in front of Mrs. Robinson that wasn't there before. (00:53:10)????