I always thought Grosse Pointe Blank worked as a pseudo-sequel to Say Anything…. Lloyd Dobler, who doesn’t want to buy, sell, or process anything for a living, becomes a contract killer. One centers around high school graduation, one centers around high school reunion. John Cusack becomes John Cusack.
Obviously, not really a sequel, but resonant.
Wrong Sinatra flick. *The Detective * was based on the Thorp novel. *TFDS * was by Lawrence Sanders.
That wouldn’t work because Eddie Murphy plays vastly different characters in both movies. I just saw the Duke Brothers cameo in Coming to America as an funny joke.
Tron → Terminator → Matrix → Dune
It all makes sense. 
They all take place in the same universe, if you listen to the random pointless conversations people have in the movies, they make references to events in other movies (or, in at least one case, to events only MENTIONED in other movies, such as the death of the girl in the pool mentioned both in Mallrats and Clerks). Lots of the actors get used to play different characters in different movies (which gets really confusing in J&SBSB when you see both Brodie (Mallrats) and Bankie (Chasing Amy) show up, one of them suggesting that J&SB stop the movie, the other insisting that they shouldn’t stop the movie.
Then again, you have Ben Affleck and Matt Damon showing up, playing themselves, making a reference to playing characters in Dogma :smack: (evidently in the View Askewniverse, Kevin Smith made a movie about the events that happened in Dogma )
A Streetcar Named Desire shows the later years of Scarlett O’Hara (never mind the time gap), after she lost Tara/Belle Reve in the Panic of 1893/Great Depression, and had to move in with Suellen/Stella.
It was, and the fact that there are two characters who look like Eddie Murphy is just a coincidence. Coming to America is a sequel because it shows the Duke brothers starting to regain the riches they lost.
At he end of ** Animal House ** the captions at the end show that Niedermeyer was " Shot by his own troops in Viet Nam, 1969 "
In **Twilight Zone - The Movie ** an American soldier in Viet Nam talks about Neidermeyer getting fragged.