I have a video I edited in Hitfilm 3 Express
Scroll to the very bottom and click submit movie
To answer your question in full @loudlazer, you need to go to http://hitfilm.com/movies and then scroll past all of the featured movies to the button at the bottom which says 'submit movie'. Thanks!
One can also submit by checking the "Upload to Movie Wall" box on the YouTube settings page on the Export memu.
It looks like you're new here. If you want to get involved, click one of these buttons!