(Cover) - EN Showbiz - Bradley Cooper is desperately trying to "woo" Olivia Wilde.

The Hollywood hunk has been single since splitting from Rene Zellweger earlier this year. He was linked to Olivia several months ago and it's now been claimed he's keen to start a relationship with her.

Olivia has been touring Europe to promote her latest movie Cowboys & Aliens, with Bradley hoping to see her when she has time off from work.

"Bradley has been pulling out all the stops to woo Olivia but nothing has worked. They've flirted a lot over the last few months and Bradley is absolutely smitten with her," a source told National Enquirer. "But she's definitely keeping herself at a distance."

There were rumours Olivia was caught up in a love triangle with Bradley and Justin Timberlake in June, although the speculation wasn't proven.

Olivia's marriage to Italian prince Tao Ruspoli broke down earlier this year and it's thought she's happy being single while she comes to terms with filing for divorce.

"He's desperate to make her his girlfriend, but right not she's just not interested," the insider added. (C) Cover Media