There used to be a department, somewhere within Industrial Light and Magic, that was tasked with writing screenplays for animated films, based on Lucasfilm's intellectual property from other media.
One such screenplay was a Monkey Island movie, titled The Curse of Monkey Island, likely loosely based on the game of the same name.
Unfortunately, in the big reorganization of Lucasfilm that occurred a couple of years ago, the department was killed, and the MI movie (still in preproduction) with it.
Recently a few images from the project have surfaced, courtesy of a former ILM scriptwriter named Tony Stacchi (who worked on the project alongside Steve Purcell). Check them out:
the other art on Mr. Stacchi's website. It's quite good.
It's times like these I'm reminded of that quote about the saddest words of tongue or pen...
Source: The Monkey Island SCUMM Bar