Haha, this thread has gone in directions I couldn't have envisioned. When I first asked the question, I thought we'd be talking stuff like the Rule of Thirds.
That's technique. The details learned over time. Good to know
at some point, but not really the first things a budding film maker
should learn.
Allow yourself to make terrible movies.
These days showing your film to complete strangers is easier than
it ever was. So a budding film maker either unleashes horrible crap
to the masses and then gets offended or discouraged when people
who don't know them tell the truth or they don't make a movie until
they have everything they believe will make the movie great.
I believe the "old way" is still the best way; make movies. I understand
that just saying that put me in “old guy” category who dismisses new
technology and sits on the porch with the “in my day...” stories. But
I see so many people coming here to ask questions that COULD be
answered by trying. “In my day...” if I wondered how three lights would
look I set up three lights, shot some film (yes film), got it processed
and three or four days later looked at it. Then tried it again.
So my advice to budding film makers is; make movies. Make a short
film every weekend with your phone camera, with your GoPro, with
your dad's 10 year old camcorder. Each time try something different;
use lights in a different way, experiment with audio and camera moves.
“In my day...” is used one-act plays because I didn't think I could write.
I didn't worry about copyright because no one ever saw my films – YouTube
didn't exist – but I had good dialogue and story to learn how to tell a
story visually.
I challenge any budding film maker to try it; make two short films a month
for three months. After six finished movies see if you have gotten any
better.