Olivia Wilde has split from her husband of eight years.

The 'Tron: Legacy' actress and spouse Tao Ruspoli have decided to call time on their marriage although the split is said to be amicable.

A source told People magazine: "They have been living apart after trying for quite some time to make their relationship work."

Olivia and filmmaker Tao - son of the late Italian Prince Dado Ruspoli - met when she was just 18 and the pair got married after just six months of dating and she admitted it wasn't wasn't a conventional wedding.

She said: "We eloped. There was nothing traditional about it."

Although the 26-year-old beauty had last year claimed they were happy, she said they weren't putting too much pressure on themselves to make it work.

She explained: "You're not thinking, 'We must be perfect!' It was, 'Hey, isn't this an optimistic thing to do? And if it lasts, we're lucky.' "