When Haley tells Lucas that she and Nathan got married, she says last night but all photos and flashbacks of their wedding occur during the day
Lucas's hair length ranges from being short to long throughout the episode.
When the Ravens are in a huddle at the start of the game, and Lucas says 'lets win this one for Whitey', Nathan in stood behind/next to him. But in the previous shot, which is a bird's eye shot, Nathan is stood next to Dan - which is not beside Lucas.
Nathan throws the name from the back of his jersey on the floor at Dan's feet. When Dan walks away a few minutes later, there is nothing on the floor.
The scene where Dan is convincing Deb to change her mind during the signing of the divorce papers. She signs next to Deborah Helen Scott. Yet when she is divorced a few seasons later, the audience clearly sees her name as Deborah Lee Scott. The same with Dan's initials, for this scene the papers read Daniel. K. Scott, yet in the later seasons the audience can clearly see his middle initial is L.
When Haley and Nathan are about to sleep together, Haley takes off her top shirt and throws it to the side and then the camera goes to Nathan and then back to Haley and it shows her throwing the shirt to the side again. Then the camera goes back to Nathan again and then back to Haley who throws the shirt aside again.
When Brooke says "It's going to be a long road trip to Seattle" her lips are not moving.
Nathan goes to visit Lucas at the river court after the game, but Nathan and Haley are supposed to be spending the night together.