Timing is a huge component of successful filmmaking. So is framing. And director David Fincher has a good handle on both.
There are a variety of reasons to use invisible split-screen composites in filmmaking, from honing the timing of shots to multiplying your actors on small-budget projects. When properly applied, this technique can be used as a tool to craft a dynamically powerful scene and is a trick that Fincher admits to implementing countless times throughout each of his films.
In this tutorial, Ben Gill gives us a breakdown of the technique, how masters like Fincher apply it, and how you can create it yourself.