Security guards on Carey Mulligan film set beaten up Two guards needed hospital treatment after attack near Sherborne Abbey Group of five men snuck onto the film set of the Thomas Hardy adaptation Hours earlier Hollywood actress Mulligan was pictured in character on set Two security guards were attacked by a group of men who snuck onto the set of Carey Mulligan's new film, Far From The Madding Crowd. The guards are believed to have challenged a group of five men when they went through a cordon on the film set at Sherborne Abbey in Dorset. They were beaten up before the men ran away. Two security guards were beaten up by a group of men who sneaked onto the Far From The Madding Crowd set near Sherborne Abbey in Dorset (pictured) Hours before the attack the film's star Carey Mulligan had been pictured in character on set Mulligan and co-stars Tom Sturridge and Michael Sheen are filming the adaptation of the Thomas Hardy classic in the Dorset town. Shops outside the abbey have been given a period makeover and some areas have been cordoned off to the public for filming. One guard, a 59-year-old man from Devizes, Wiltshire, suffered bruising and cuts to his body and was taken to Yeovil Hospital for treatment. Mulligan plays Bathsheba Everdene in the adaptation of the Thomas Hardy classic The second guard, a 47-year-old man from Lewes, East Sussex, suffered swelling to his face and body in the attack at about 1am on Sunday. Detective Constable Gerald Marchant said: 'This was an unprovoked attack that left both men requiring treatment.' It is thought the five men broke onto the set after leaving a local pub, the Evening Standard reported. Hours before the attack, Mulligan, 28, was pictured in character as Hardy's Bathsheba Everdene - the West Country heiress loved by three men. The actress was seen in period costume and wore a long navy blue coat. Carey revealed earlier this week that she was finding the shooting of the new project 'exhausting', but hugely rewarding. She said: 'I'm getting picked up at 5.30 in the morning tomorrow - to Dorset. I am so tired! 'I am enjoying it so much, it's brilliant. It's outside a lot. 'Seventy per cent of the film is fields, exteriors and outdoorsy things, which is really great but it's cold and really tiring.' Some nearby streets have been cordoned off during filming and others have been given a period makeover