Gwyneth Paltrow: `There`s always sex when I`m involved`

When asked how Gwyneth felt about doing romantic scenes, she told Etonline.com: 'There's always some sex and nudity when I'm involved.'

In her new flick Country Strong, the mother-of-two plays Kelly Canter, a musician who succumbs to drug addiction.

One thing Paltrow has learnt from the movie was to have more respect for her husband, Chris Martin's profession.

The 38-year-old said: 'When I signed on to do it I didn't realise how much I was biting off in a way.

'But to learn how to play guitar, just even enough to just be pressing the right chords, was a lot of work and the singing was a lot of work and the research and learning about country music and listening to everybody and watching DVDs of everybody performing and, you know, it was a lot of research.'

Gossip Girl star Leighton Meester, 24, also has some parts in the film where she is wearing next to nothing.

The actress compared shooting a scene in her underwear to being filmed in her swimming costume, claiming in the 'right environment', scenes like that are fine, unlike the 'intense' audition process she underwent for the film.

Country Strong his cinemas in the US on January 7.