From: San Diego, Ca.
OK found the right one. Interview with the director, same guy did hellboy.
PB: Well. Outside of all the supernatural material -- of which there's a lot -- there are two solid tank battle confrontations, done in a way that I don't think I've seen on film before, even looking at movies like "Kelly's Heroes" or "Battle Of The Bulge". We have one wonderful depot sequence with a lot of hardware...experimental German ground vehicles, a flying wing. All actual machinery that was deployed in the field at the time, but has never been seen onscreen. And a significant part of the film takes place on the "Gustav", one of a pair of monster guns...the largest railroad cannons in the world that the Germans built. The armor nuts are going to love this movie. We have a wonderful producer in Germany, a big World War 2 enthusiast, who's helping us -- informally, at this juncture -- to get together hardware for the film.
IIRC Hellboy started out as a Nazi experiment that was overrun by the Allies.
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