Paltrow: I'll only work if it's good for me

Hollywood star Gwyneth Paltrow has admitted she will work only if it's good for her after staging a no-show at the Venice Film Festival.

The A-lister had been due to promote new film Proof yesterday but her plane was sent back to New York after suffering a technical hitch.

However, Paltrow spoke at a press conference via a telephone link to promote the movie, prior to its US opening on September 16.

She said she took time off after the birth of Apple, her daughter with Coldplay frontman Chris Martin, last May. 'I fell in love with her so I was reticent about leaving her and going back to work,' the 32-year-old said.

Paltrow added: 'I'm only interested in doing a role I'm going to learn something from, that'll challenge and enrich me as an artist, a person, a mother.

'I don't have that care-free spontaneity anymore.'

Proof, in which Paltrow stars as a woman haunted by her father, is up for a Golden Lion award at the festival.