Bizon’s review published on Letterboxd :
Even though Hardcore Henry is pretty awful, I admire the doggedness with which the filmmakers stick to their (apparently terrible) idea of a 100% first person movie.
But the thing is, when you move quickly around your eyes focus on particular objects while you move. That, plus your big brain help smooth out the visual field and make sense of what you're seeing. A camera stuck on your head doesn't do the same thing - you bounce, it bounces, and the end result is visual coleslaw.
Seems like you could do much better with this by using a different (larger field) camera and then moving the visible frame around in the filmed frame afterwards.