Here at Greenwich Writers, we love a good competition! Below are some of the major ones to take note of, of course there are many, many more to keep an eye out for!
The BBC Writers Room doesn't run its own competitions, though it does advertise and promote many, but it allows submissions to be sent - you might even get feedback, if you're lucky! And they don't just look at scripts - have a peek! There's also lots of really useful advice.