that 17.5% VAT tax makes me quiver just thinking of it.
i've never had a problem taking film in a carry-on. going home, you could always ship it to yourself - i've thought about doing that when visiting family in france, but always got too busy at the last minute, and just put it all in a ziplock bag in the carry-on. i've brought everything from asa 50 to 3200 - maybe i was lucky, but i never had trouble with the xrays - but then again the last trip we made was 2 summers ago
if you are doing large format, it has been suggested both by people on the large format board (lfphoto.info) and the photo.net lf board that you should ask for hand inspection and you might want to make sure you bring unopened film boxes, otherwise they will want to open everything up to make sure it is film.