Miller "mesmerised" by Sean Bean

Sienna Miller has apparently been "mesmerised" by actor Sean Bean as the pair prepare to film together.

The star is due to work with Sheffield-born Bean on A Woman Of No Importance from September.

They recently spent a romantic night together at her west London home, according to the Daily Mail, and Miller is said to be impressed.

"She is completely mesmerised by Bean already," said a source. "She has told friends that she can't help feeling transfixed by his green eyes and loves the fact that he is a real macho man.

"He is almost twice Sienna's age but she doesn't care about that. She has dated many men of many different ages, and who have varied circumstances, so the fact he is a bit older isn't an issue for her, she is hoping to get to know him a lot better."