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.
Robert Pattinson plays a character named "Jacob". This also happens to be the name of the romantic rival to Pattinson's character in a popular film series, also based on books.
In a deleted scene of the 2004 film Vanity Fair, Robert Pattinson played Reese Witherspoon's estranged son. In Water for Elephants, they play lovers.
In 1998, Reese Witherspoon was in a film that happened to be called Twilight.
Robert Pattinson plays a creepy, abusive, jealous stalker in Twilight. Here he plays the (non-abusive) protagonist in a story that deconstructs abusive relationships.
Moral Event Horizon: August throwing Walter and Camel off the train as it goes over a trestle bridge.