Totally wrong scenes in films when someone should know better.

This is my spin off from the film thread, read my posting to see why.
Daz:- I’m trying to think of bad a/c use, possibly the worst was the use of Spitfires in Piece of Cake, however, given the circumstances of the time and the fact that I feel it was a brilliant programme, I forgive them for that. If you can come up with something else please let us know, just thought of a few, the Skyraiders flying over the fleet in The Longest Day, Lancasters towing gliders, those poxy Harvards used as Typhoons in A Bridge Too Far, I’m sure that there were enough Sea Furies around to use at the time, and OK the radial engines weren’t right, but the shape and power was. How many times have we seen Taifuns used as Bf 109’s, Longest Day, 633 Squadron, that film with Frank Sinatra when the POW’s knick a train, you know the one I mean, can’t remember the name of it. Aha just thought Von Ryans Express.
But its the use of trains that really p### me off, it’s not hard to find someone that can put it right surely.
There’s so many instances of this that I don’t even want to comprehend where to start, my favourite was the remake, again, of The 39 Steps, starring Robert Powell, a good actor that I don’t think was ever used to his potential, but the train they used was unforgiveable, a 1950’s built Standard when a genuine Midland Railway train involvoving the compound 1000 was readily available.
Comments please, this could extend to buses and cars, and don’t lets forget totally out of period military vehicles, particularly with regard to Patton.