"There was time between the waning age of enchantment and the dawning age of logic when dragons flew the skies, free and unencumbered. Look down there Gorbash, my friend. On the top of the earth below us, confusion and chaos reign. All mankind is facing an epic choice: a world of magic or a world of science. Which will it be?"
Fantastic animated movie from 1982 and a cult classic. A shoe salesman (note the Gary Gygax parallel here) is transported by a tabletop game to an alternative world which debates between science and magic. This film does a very detailed explanation of dragons' breath and flight powers, and will appeal especially to role players and fantasy buffs.