No I'd never heard of it. But thirty seconds with Google determines that Journey Together is a 1944 film made by the RAF, written by - and acted by - members of the RAF. Apparently our Hero joins the Empire Training Scheme in Canada (before ending up as a Navigator).
https://www.youtube.com/watch?v=17LrPM4Ao44
Doubtless plenty of authentic, real-life Empire Training shots. And whilst no longer available from the IWM available from
.