Yeah. The anime was comedic because of its deadpan humour in small doses (the eps were short, after all). This live action might be taking itself too seriously and building too grand stuff in the story, based on the trailer. And of course in the anime the Romans actually looked like foreigners compared to the Japanese people.
But who knows. If a sub appears, I might still watch it. But I have a feeling I won't go out of my way to look for a release.