Audio problem: In the scene where Robbie is sitting outside and Linda walks up to him to tell him about why she called the wedding off, she firstly walks on the concrete and you can hear her footsteps, then she walks on the grass, but you can still hear her heels clicking.
Continuity mistake: When Robbie and Julia are making their friend the limo driver run through the obstacle course to prove his driving ability, you can clearly see both right-side hubcaps come off the car. Then, just a few seconds later, the hubcaps are back on the limo.
More quotes from The Wedding Singer
Trivia: Adam Sandler was paid by the old lady with a meatball, which is the name of his dog.
Chosen answer: How his parents died is never mentioned.