The books are so much better than the movies... because, lets face it, the stories are repetetive and pretty much suck. However, Snicket's writing style makes them very engaging and enjoyable, which is something that can't be done in a movie (even if they shorten the storylines, although some seemed a bit too short).
Franchises I'd like to see?
A new, 3D Discworld adventure. They have more than enough characters and locations to make a fun series.
A Jhonen Vasquez comic based game. Any of his work would be fine, although personally I think Invader ZIM would work best.