Complex sentence: This is not meant to be a list of every single 4D film it should only include those films that either (a) have their own separate articles or (b) that are fully-developed subheadings within articles on the venues that host them.
Split into simpler sentences: This is not meant to be a list of every single 4D film. It should only include those films that either (a) have their own separate articles or (b) that are fully-developed subheadings within articles on the venues that host them.