Brad Pitt and his sunglasses take to the red carpet in Venice. Photographer: Franco Origlia/Getty Images.

Since his relationship with Angelina Jolie began in 2005, Brad Pitt has graced the pages of tabloids week in, week out.

He hasn't proved too popular with photographers at the Venice Film Festival though. The paparazzi have nicknamed him "Pitt Bullo" ("bullo" means bully in Italian) after he refused to take of his shades and wore an ''indifferent smile''.

This is not the first time a star has been harassed on the red carpet. In 2005, while promoting his film War of the Worlds at its London premier, Tom cruise was squirted with water by a fake news crew from a Channel 4 comedy sketch show. The perpetrators were arrested for assault and later released but were labelled as a "jerks" by Cruise.

Poor Brad and Tom, they may be two of Hollywood's biggest stars but do they really deserve this kind of treatment from the media?