These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternate Character Interpretation: He Says She Says all over the damn place. Is he to blame for cheating... or her, for stalking? Which is worse? Does one merit the other as a punishment?
Fridge Logic: The Mad parody points out that Alex, when she kidnaps Ellen, somehow manages to find an amusement park open during school days in the off-season.
The amusement park is Rye Playland. If the movie takes place in May, the amusement park would be open during the school days during the week.
"Funny Aneurysm" Moment: Glenn Close played a pregnant woman on a murderous-rampage in the re-shot ending that we all know and love; she didn't find out she actually was pregnant with a little girl during the filming of said-murderous rampage until after she was rushed to the hospital with a concussion during a botched take. Needless to say, she does not like watching the finale to this day, having (unknowingly) risked her daughter's life filming it.
There's also when Alex kidnaps Dan's daughter several days later, terrifying her parents — and the viewer — with the very real possibility that she could have harmed her if she wanted to, and indirectly leading to Dan's wife being injured in a car accident. It's not hard to see why this is the last straw for Dan.