The correct option is D is
It is to be kept in mind that Either, Neither, Each, Everyone, Many a, must be followed by a singular verb.
'Either of the movies' means each individual movie. So, we are referring to a singular noun. By the general convention, a singular noun takes a singular verb. Hence, option C 'is' is correct and option D 'are' is wrong.
Options A and B are incorrect because they are irrelevant to the context.