Far from her real-life role as doting mother to new baby Sunday Rose, Nicole Kidman is stripping down to her underwear for a raunchy love scene with Hugh Jackman in their new film Australia.

Nicole's husband Keith Urban will no doubt be uncomfortable watching his famous wife pucker up for a series of romantic scenes with fellow Aussie Hugh in the upcoming epic.

Filmed on location in her home country last year, the Oscar winner plays English widow Lady Sarah Ashley, an aristocrat who inherits a huge cattle station in northern Australia.

Raunchy: Nicole Kidman and Hugh Jackman get to grips with each other in a saucy scene from Australia

After her land is threatened by cattle barons, Lady Sarah enlists the help of Hugh's drover character to drive her herd across the property.

While initially disliking the rough worker, Lady Sarah crosses the class boundaries and eventually falls in love.

The movie is set during World War II, when the Northern Territory town of Darwin was bombed by the Japanese army.

Kissing in the rain: Hugh Jackman enjoys a Hollywood kiss with Nicole Kidman

Wilderness: Nicole Kidman as Lady Sarah on her cattle farm

Often described as 'Australia's Pearl Harbor', 243 civilians and military personnel were killed and over 400 injured during the assault on 19 February 1942.

Describing the film, Hugh said: 'It's romantic, adventurous, and huge in scale.'

The film marks a reunion for Nicole and her Moulin Rouge! director Baz Luhrmann.

Action man: Hugh Jackman herds cattle on horseback in the physical role as The Drover

Hugh enthused: 'That's what I love about Baz. His movies really are all about breaking society's rules and love conquering all.

'Working with Nicole was beyond anything I could have imagined.'

Nicole admitted she found the film very challenging and abandoned her usual five star hotels to camp out in the bush with the cast and crew.

She said: 'It's the roughest thing I ever had to go through. We got caught in a dust storm so bad we couldn't even see.

Little helper: Nicole Kidman cuddles up to 11-year-old actor Brandon Walters, who plays an Aboriginal boy who helps her move the cattle across the country

Rugged: Hugh Jackman as The Drover

'Everybody lived out there for five days in these little silver tents. It was great.'

Russell Crowe was originally set to play The Drover, but quit over pay.

At the time of his departure, Russell said: 'I just didn't want to work on that movie in the type of environment that was being created because of the needs of the budget. I do charity work, but I don't do charity work for major studios.'

The film is set to open in November.

High drama: A distressed Nicole Kidman sprints across the town