Continuity mistake: When Belinda says "nice sweater" to Jamie, Jamie has a backpack on. When Jamie walks away, her backpack disappears. (00:11:55)
Audio problem: When Jamie is looking through the telescope Landon built for her, the second time she says, "Come here. Come look. Quick," is looped because her lips are hardly moving. (01:31:25)
Continuity mistake: When Landon goes to visit Clay in the rehab center, as he's walking in it's a bright sunny day. But once he enters the room, the weather through the window is dark and dreary. (00:35:05)
Trivia: The "Walk to Remember" is not a walk with both Landon and Jamie. It is Jamie's walk down the aisle. Some people think it is the walk down the pier when he says he loves her and some think it's their first walk up to the school past all of Landon's friends a scene or two later. This is not only stated explicitly in the book but it is also meant to be clear at the end when Landon goes to see Jamie's father and his "thoughts" are something like "...but the vision of Jamie walking towards me will be with me forever." On the DVD commentaries they discussed how they added that because people didn't know why it was called A Walk to Remember or just which walk was supposed to be so memorable. In the book Jamie is much more ill and can barely make it down the aisle, but "it was in every way, a walk to remember."
Trivia: After the play, on the front porch of Jamie's house, Landon arrives and gives her a pink sweater. At one point in this scene, you can see the red lights of a car pass from left to right behind Jamie. That is a real police car in the middle of a real car chase! You can hear more about this on the commentary with Shane West, Mandy Moore, and director Adam Shankman on the DVD.
Question: Who was Jamie's maid of honor at the wedding? I was reading some discussion on imdb and the comments seem to indicate that it was Belinda since neither she nor Dean's girlfriend were seen sitting in the pews with Dean, Eric et al. One shot does briefly show a blonde girl holding the bouquet of flowers.