1. Bad Boys III - Michael Bay
The Movie: The third (and probably final) entry into the popular buddy cop franchise, starring Will Smith and Martin Lawrence.
Why It Hasn't Been Made: Michael Bay has, to his credit, been
very busy. Since 2003's Bad Boys 2, he's directed The Island, three Transformers movies (with a fourth on the way), and Pain and Gain (released in UK cinemas today). While it's clear to see why Transformers is more alluring to Bay than Bad Boys - PG-13 is always going to make more money than an R-rated venture - we've been patiently waiting for Bay to get these movies out of his system, and give us the blood-soaked, uproarious finale to the crime series we so desperately want. Still, given that a new Transformers trilogy is likely going to be kick-started by the upcoming one, I wouldn't count on it for a little while. Which unmade movie surprises you the most? Let us know in the comments below.