Continuity mistake: When Katherine is trying on shoes, they're blue. Then when Danny mentions they're her bonus, she says, "Then I'll take them in blue too in case I want to cuddle."
Continuity mistake: When Adam Sandler is on the phone with Jennifer Aniston talking about the dinner with Nicole Kidman he lies the phone on the couch. Next shot it is gone, then it is back.
Continuity mistake: When Palmer and Danny wake up on the beach and she finds his ring, she's wearing a single bracelet. Next shot she's wearing multiple bracelets, this continues throughout this scene.
Continuity mistake: When Danny is teaching Michael how to swim and has reached the farthest side of the pool, as Palmer and Katherine show up, Devlyn shows up and both children are gone by the time Palmer is pushed into the water.