This whole "he couldn't turn his head" argument thing is obnoxious. One of the most embarrassing criticisms of a sculpt I've ever seen. Did Sideshow take creative liberties? Sure, it's a work of art, but he
could turn his head.
That's one of those weird misconceptions that the fan base just loves to obsess about, the whole "bat neck" thing. "Ohhhh, he couldn't turn his head until Dark Knight", "Keaton, Bale, Kilmer, and Clooney couldn't turn their heads at all!". False. In every Batman film from '89 to Begins, he can move his head, just not well. It's not like the cowl was so stiff they couldn't look up or down or side to side. There's atleast one scene in every film where the actor tries to force his head to move to an extreme right or left . . . and succeeds. The most prominent ones are in Returns and Begins when Batman is driving in the Batmobile and Tumbler and has to look around. Even Clooney managed to do his odd head bobbing in the suit.
So hopefully we can put this to rest. That cowl wasn't some metal or wooden thing, it was pliable. They could turn their heads as far as this statue goes.
The reason they didn't move it as often was because on film it didn't look natural. Some times the mouth would get all bunched up and turn with the suit. That's why it looks like the cowl doesn't even fit Keaton's face or Bale looks like he's about to burst out of that thing at times. Every cowl from Batman to Dark Knight Rises has been this cheap ***, latex rubber. Until 2008, the "bat turn" was the best option for a dramatic looking Batman.
https://youtu.be/sP9fFSc2Rx0
Just because they did that though doesn't mean they couldn't turn their head.