London, July 6 : Brad Pitt and Angelina Jolie have a security nightmare to deal with, thanks to the couple's 25 million-dollar art collection.

The pair had previously installed hi-tech security system, such as lasers and sensors, to guard their collection at their various homes.

The move was insisted upon after Pitt shelled out another million on a 10-foot wide rainbow-coloured work by German surrealist Neo Rauch earlier this month.

The actor also reportedly splashed a staggering 219,000 dollars on modernist furniture by Dutch sculptors Atelier Van Lieshout.

And now the "Brad Taste" collection is said to be posing security issues.

"He has become a very serious collector and that always brings storage and display headaches," the Daily Star quoted LA expert Eli Broad, who has been regularly consulted by the star, as saying.

A source close to Pitt also added: "Rooms in two of their US homes are already installed with lasers and sensors. You'd have to be a combat-trained limbo dancer to even think of trying to steal any of the art or furniture they have on display. Insurers have insisted they turn every home into a kind of residential Fort Knox." (ANI)