Have a look at the crowd scene in this front cover from the Evening Standard in UK.

Looks impressive doesn't it. That large crowd all cheering on the allies. The only problem is that it is two or three pictures of a smaller crowd all cobbled together to make the crowd seem much more impressive than it really is.

See if you can spot some of the duplications for yourself. For example there is a man in a white shirt in the middle distance that appears on both the left and right hand sides of the photo.

A full analysis of the duplications can be found here.