I have no experience in film making, though I have a large amount of professional and business experience, but I am interesting in making movies.

So how should I start? I am thinking of doing a few shorts every so often, to build up my experience and also to see if this is what I really want to do. I can upload those shorts onto Youtube or an internet channel, but where do I show the shorts in movie theatres? Is there even a microscopic market for short films? If so, then that would be really, really great.