I had a roll of very expired colour print film, so I thought I'd try the 'redscale' thing by respooling the film 'back to front'. The film is exposed from the wrong side and you end up with a strong red shift in the pictures. These are scans straight from the lab, and they're flipped left to right as a result of the respooling and shooting through the back of the film. I left them as they came of the CD. I quite like how they came out, but I don't know if I want to do it again...