What's the key difference with the other game with this theme, and which one is preferable from an "Ameritrasher"'s perspective?

Well, I've only played "Beowulf: The Legend", but from what I can see, I'd say "Beowulf: The Movie" would be more "Ameritrash" in that you get a lot more cool little plastic sculpts and such. Beowulf: The Legend is cards and cardboard disks which doesn't inspire a lot of "oohs" and "ahhs." Beowulf: The Legend is definitely a "euro" in it's gameplay, and with Beowulf: The Movie being a retheme of Kingdoms, it is too.

I somehow think they would be a little more than astetic differences. But eh, I havent seen ether around.