The whole point of making a sequel is to market it towards audiences who enjoyed the original and want to see more. Franchises are naturally attractive to producers for this reason, since they can pump out multiple instalments and minimise their investment risk. This obviously doesn’t work so well if they don’t mention it’s a sequel, or that it’s even tied to another movie.
Still, some filmmakers like to have fun and add links to other films, often burying them for fans to seek out. It can be as subtle as mentioning an event in passing, or having an actor briefly reprise their character from another movie.
A lot of popular movies are linked in this way, and even a gory low-budget horror movie can have ties to a glossy blockbuster. Finding these subtle links is often the fun bit, and rewarding for the dedicated easter egg hunters out there.
Here are some of the best examples of movies that are linked together in unusual ways, and how exactly they mesh together.