Prince Humperdinck tells Westley to surrender after they leave the fire swamp. Westley refuses. He says, "No one is surrendering."

After Humperdinck says surrender, Westley says, "You mean you wish to surrender to me? Very well, I accept."

The main character is kidnapped and held prisoner for 10 years.

He is held for 20 years.

This does not happen in the book. Also, the book sticks to the chronological order of the events, told looking back.

Michael writes a poem about Hanna while she is swimming. He tells her he will read it to her one day. Then old Michael is looking at the book in present day. In fact, the movie goes back and forth between the past and present.

Sydney wants to play Nerve.

Sydney is playing Nerve, but isn't as popular as Vee.

Conrad spends 8 months in a psychiatric hospital after his suicide attempt.

He is there for 4 months.

Roy makes his comeback at 35 years old.

Robert Redford was 48 when the movie came out. He played both the 19 year old and 35 year old Roy.

Miles knew about his ex-wife being invited to the wedding prior to the road trip.

Jack breaks the news to Miles that Victoria (Miles' ex-wife) got re-married. Miles is upset and chugs down an entire bottle of wine. Miles is in a bad mood for a significant part of the movie because of this. Jack is upset because Miles is moody.

when Tommo gets buried by a shell he gets pulled out by his legs.

he get pulled out by his backpack/ uniform

Bowman spends months on the ship alone, then finds another monolith near Iapetus. When Bowman approaches the monolith in pod, it pulls him in. Before he vanishes, Mission Control hears him proclaim: "The thing's hollow, it goes on forever, oh my God! It's full of stars!" Bowman is transported to an unknown star system and sees other species' spaceships going on other routes. He is brought to what appears to be a hotel room, where his mind and memories are drained from his body, and he becomes an immortal 'Star Child', that can live and travel in space. The Star Child then returns to Earth, where he detonates an orbiting nuclear warhead.

When arriving at Jupiter Bowman sees a large Monolith and leaves in an EVA pod to investigate. He is pulled into a vortex of light and ends up in a room appearing as different versions of himself at various ages. As he reaches for a small monolith in the room he is transformed into the space child and is seen observing Earth.

When Sneaky Pete betrays Scat, he had to leave their apartment and move in with Cindy, his on again off again girlfriend. Whom eventually threw him out and he was forced to live with 6 and her roommate, Tina.

Scat moved in with 6, after leaving his and Sneaky Pete's apartment.