Yeah I like them. I don't really remember the film that well to be honest. There were a few things in it I thought were OK but generally I just thought 'nooo! They could have done that better...'
The books following Inkheart take the characters into the world that Dustfinger and the rest come from, a sort of medievalish forested country where two princely realms (Lombrica and Argenta) are at war. It's a society without gunpowder, where men-at-arms, and a few vaguely knightish types, wage war primarily with swords, daggers and crossbows. There are also the 'Motley Folk' - travelling entertainers - and the Fire-raisers (bandits who attack poorly-defended farmsteads when not working for the 'baddie' prince), as well as a plethora of fairies and 'Brownies', sort of like shaggy Hobbits, and also giants.
It has a vaguely Italian feel to it, as Fenoglio (who is the author of the original book) is supposed to come from the area around Genoa I think, and the idea is that he bases the castles and towns of his fantasy world on Liguria.