A quick off topic comment, but I didn't know that the Batman Begins
batsuit actually allowed neck movement!
The cape was topped by a cowl, which was designed by Nolan, Hemming, and costume effects supervisor Graham Churchyard. The cowl was created to be thin enough to allow motion but thick enough to avoid wrinkling when Bale turned his head in the Batsuit. Churchyard explained the cowl had been designed to show "a man who has angst", so his character would be revealed through the mask
So then how come Bale had trouble turning his head in Begins
? I always did like that suit more.