This has been on Youtube for several months, but there may be people who haven’t seen it.
It is a compilation of two newsreels from 1943 and one from 1955. The first two show King George VI and the Queen visiting 617 Squadron at RAF Scampton after the Dams Raid. The second shows the aircrew who were decorated for their part in the raid, outside Buckingham Palace after receiving their medals.
The postwar section shows original aircrew mingling with actors and people from the film industry at a reception to mark the premiere of the 1955 film.