I was shooting black and white on my first roll of negative in Rome and I had just one shot left so I decided I wanted to shoot the "Square Colosseum" as they call it. Once there I prepared the exposition, focus and everything but when I was ready to take picture I discovered I had run out of film.
As I didn't have any digital camera with me, I used my phone to somehow save the missed shot. It turns out in color is much more vibrant and now I'm happy I took the picture this way.