I think "the" movies should also be accepted, yeah? That is how we often refer the cinema here in the states. Other than that, enjoying the course!
I don't think it's referring to THE cinema. I think it's more along the lines of the subject of Cinema and Movies.
I said "Do you like going to the movies?" It rejected my gerund, demanding the infinitive. Slight variations like this should be accepted too, seeing as we're using a grammatically different phrase that more commonly conveys the same meaning in our language.