Corrected entry: When Truman is going about his normal life, it shows the angle of the camera on his ring. However, when Truman escapes his normal life, they for some reason never think of checking this camera. It would have saved them a lot of trouble...
Corrected entry: When Truman is looking into the mirror in his bathroom and we see him front on, you can see that there is a shelf of shampoo and bathroomy type bottles sitting on a ledge beneath it. When the camera cuts to show Truman actually standing in the bathroom, there is no shelf at the bottom of the mirror.
Correction: The camera is inside the cabinet, looking through a two-way mirror, so we're seeing the bottles inside the cabinet. As such, from the outside we can't see them.
Corrected entry: In the shot where Truman Burbank buys a ticket for the ferry, the camera inside the small house changes: there is no "Open" sign in the window with the venetian blind, but in the very next shot you can see the "Open" sign in the window.
Correction: The open sign is actually on the opposite window. You can see this when he first walks up to by the ticket. The side showing says closed.
Corrected entry: In the scene where Truman sees the wedding picture and he realizes Meryl has her fingers crossed, her wedding ring is on her right hand, not her left. In other scenes, she wears her wedding ring on her left hand.
Correction: He'd already broken up with his wife and already figured out something was up, he most likely wasn't wearing the ring anymore.