For those of us in the UK - there's going to be a celebration of the 75th anniversary of the Dams raid on the 17th of May , held in the Royal Albert Hall, including a 4K restoration of the 1955 film -
The good news is that it's going to be streamed to cinemas throughout the UK - check your local ciniworld etc ..
Details here
https://www.royalalberthall.com/tickets/events/2018/the-dam-busters-with-dan-snow/
Don't suppose the HK Lanc will be available by then?
ColinR