De or het rockfilm?

The correct Dutch article is:

de rockfilm

How to use rockfilm

the rockfilmde rockfilm
this rockfilmdeze rockfilm
that rockfilmdie rockfilm
our rockfilmonze rockfilm
your rockfilmjouw rockfilm
every rockfilmelke rockfilm
which rockfilm?welke rockfilm?
a big rockfilm / the big rockfilmeen grote rockfilm, de grote rockfilm