3 Then someone threw mud all over Evan and the other extras to make them look as dirty as possible just like soldiers who have been fighting in a long war. During the filming though, there was nobody there to fight. Evan remembers, "We were told, "That's where they're going to be. Imagine they're there." The film-makers added the other soldiers the film later. 4 So what was the hardest thing about being an extra? 'Waiting two years to see it l'm only in the third film!' says Evan.