In V for Vendetta, Evey has her head shaven while in captivity:
After she is released, it appears that a significant amount of time goes by and Evey is shown living a somewhat normal life.
Evey comes back to see V on November 5th, as she promised. Her hair appears to be the same length as when she left captivity:
Did Evey continue to keep her head shaven? Was there just that short of time that elapsed from her release from captivity until she meets V again?