Actress Melissa Leo enjoys fantasising about romancing her co-stars and crew members on film sets.

The Oscar-winning The Fighter actress is single and lives alone in New York, and although she isn't a fan of dating co-workers, Leo admits she often likes to dream about little scenarios with those who catch her eye.

However, the 52 year old insists she would never act on her emotions.

She tells The New York Times Magazine, "Invariably there will be some on-set gaffer who will have caught my eye. To my very best friends, I refer to him as my boyfriend. I never touch the guy. Never talk to him even. He has no idea he's my boyfriend. This is much easier than actually having to deal with somebody."