Do you seriously expect quantum mechanics and general relativity in a fantasy movie for children? lol.. I always thought it fitting for the setting of Fantasia, speed of darkness, luck dragon, rock giants that eat rock.. why not?
"All those moments will be lost in time, like tears in rain"

and move and all words associated with the word move is spelled M-O-V-E.
Dear me! What is that unpleasant aroma? I fear the sewer may have backed up during the night.

Right,but if darkness is the absense of everything how can it moove faster then? It doesnt depends if you look at this in Mach's prespective,Neutonian (absolute) prespective or more modern prespective
It's like saying: Is moovement considered only when a point of refference is defined,or is moovement an absolute in every occasion you will see that this question can't be solved that easily if you know what i'm talking about
"Talk sense to a fooland he calls you foolish" Euripides

Actually, darkness could be considered faster than light.
Darkness is absolute. Only light can distort it. But, darkness always exists in some form.