There's a film called The Pathfinder in English. It was the first film made in the Same language apparently. It was a ripping yarn set in mediaeval Norway. Really quite good at the cinema.
So, a few years later, I saw it in the video rental shop (would have been about 1990) and saw it there. I got it home expectantly and put it in the VCR. It took 10 seconds to realise that it had been dubbed into septic English. Bad, very bad.