At the wedding, the bride is wearing a low cut gown, but later when she removes the gown, her under garment has a higher neckline than the wedding dress. It's apparent she wasn't wearing the undergarment under her wedding gown.
A full-length picture of a person cannot be blown up enough to see the writing on a class ring; there is insufficient resolution.
The red safe light used in the dark room is for black and white prints only. It would ruin color prints.
When the captive bride is trying to figure a way to get the pins out of the door hinges, she unscrews the metal hook out of a wooden hanger to use it as a tool. However, those hooks are designed to swivel continuously, not unscrew.
The bride removes the pins from the hinges to the bedroom in which she is being held and roams around the interior of the house. When the police arrive, the front door is off of its hinges.
(When the kidnapper leaves, we are shown that the door is off its hinges.)