Continuity mistake: When Henry is leaving the dock, Alexa waves with her right hand. Notice the watch. When Alexa grabs some butt from Doug, The watch is now on left arm. (01:23:10)

50 First Dates (2004)
Plot summary
Directed by: Peter Segal
Starring: Adam Sandler, Drew Barrymore, Sean Astin, Rob Schneider
Henry (Adam Sandler) meets and falls in love with Lucy (Drew Barrymore) the only problem is that Lucy has lost her short term memory in a car accident so every day he has to make her fall in love with him again.
Kara Taylor
Nick: Hey, Mr. Peanut Butter Cups.
Henry: Hey, Mr. Could-Kill-Me-In-One-Punch.
Question: When Henry and Lucy are getting intimate and Henry sees the two dolphins in the tank watching, he calls them Mary Kate and Ashley. I know who they are but why does he refer to them like this?
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Answer: Probably because it was the dolphins' names. Someone probably thought the dolphins looked alike and that it would be funny if they were named after the famous twins.
Andreas[DK]