Freebase query - exclusion of certain values

I want to retrieve name of all movies and their genre. It's ok if information about genre is empty, but if genre is known I want to retrieve it.

"/film/film/genre": [{"id":null,"optional":"optional"}]

But I'm not interested in gay pornography, so I want to exclude all movies with genre "/en/gay_pornography".

"/film/film/genre": [{"id|=":["/en/gay_pornography"],"optional":"forbidden"}]

The problem is, how to combine it in one query? I.e. how to get all movies, even those with no genre and exclude pr0n?

Edit: it's required to exclude multiple genres, e.g. also /en/pornographic_movie