not that it's entirely unbelievable or anything... http://scienceblogs.com/neurophilosophy/2007/11/the_camera_does_lie.php
Some of the participants were presented with digitally altered photographs, while others were shown the unaltered, original images. It was found that manipulation of the photographs influenced the participants' memories of the events very strongly.
For example, those participants shown the doctored photograph of the protest in Rome (top right), in which figures placed in the foreground give the impression of violence, rated the event as being significantly more violent and negative than it actually was. In their comments, they also provided false details, such as conflicts, damages, injuries and casualties that did not appear in the photos and were not documented at the event.