"이것은 무슨 영화입니까?"
Translation:What movie is this?
If we're going to be that picky, the English should be "This is what movie?" What movie is this and what is this movie have functionally identical meanings in English and both should be accepted.
They may sometimes be interchangeable, but "What movie is this?" only asks the title of the movie.
"This is what movie?" is "이것이 무슨 영화라고요?"
That's wrong. What movie is this and what is this movie can BOTH be asking the title. They mean the SAME THING.