Please make sure the movie section has pictures of the movies. Or

Please make sure the movie section has pictures for the movies.
of
I think "for" is correct in this case.

But you might say "stills of the movie."
PreciousJonesPlease make sure the movie section has pictures for the movies.
I assume you're talking about the "movie section" in the newspaper.

Advertising panels are often not "of" the movie itself, but composits, or altered views.