Film News reports that in an Empire Magazine (current issue) interview, Mr. Reeves makes his views on technology and 3D known. With respect to 3D, he says:
“We have seen some examples where the 3D aspect of the film was not the way it was designed. They’ve done post-3D. Clash of the Titans is often held up as the way not to do it,” he told Empire magazine.
The entire article can be read at the link above.