Yes, they have remade Martyrs. I feel like I have to start off saying that because apparently a lot of people didn't know that this was even a thing. From the time that news broke that the Goetz Brothers (Scenic Route) had already filmed the movie- shocking (and pissing off) everyone- it didn't stand a chance in the horror community. The French 2008 original, which is usually lumped into the category of "French extreme horror" (Inside, Haute Tension, Frontier(s)) and one of my absolute favorites, left a pretty big impact on the folks that have watched it. And for good reason- that shit is brutal, and dark, and haunting, and heartbreaking, and and and... you get the idea.
Oh yeah, we're talking about the remake, right? Yeah, that version wasn't any of those things.
Usually if a movie mirrors too much of an earlier film and isn't a remake, we're gonna have some problems. That would be said about director Stewart Thorndike's Lyle if it wasn't so damn good. What we got was a modernized take on Rosemary's Baby without it feeling like a total rip-off.