The 18 best movie sequels that never happened

We've jumped into the summer blockbuster movie season, and that means a whole lot of sequels to be seen.

In an era when it seems every idea in Hollywood has been made into a franchise or rebooted for one, several famous titles missed the boat.

In some cases, the filmmaker moved on to other projects (including franchises). But rumors about potential sequels for a number of these titles are spreading.

Here we rank the 18 movies that we think deserve a sequel.