Julia Roberts says 'Pretty Woman' had a "profound effect" on her life.

The 42-year-old actress has a special place in her heart for the 1990 movie - in which she played a down-on-her-luck prostitute called Vivian Ward - because of the way it changed her life.

She said: "'Pretty Woman' had a profound effect on my life, so I have an incredible affection for that movie. But it's like picking your favourite friend, it's impossible. There are different reasons to love all of my movies."

Roberts - who along with her co-star Richard Gere helped the movie rake in over $460 million at the box office - has really enjoyed working with 'Pretty Woman' director Garry Marshall again on new movie 'Valentine's Day'.

She added to America's OK! magazine: "He's just one of my favourite people in the world, and I owe my career to him. He took a chance on me when it wasn't the easiest decision to make, and he really stood up for me. He's a great director. It's insane the people that are in 'Valentines Day'. This movie is just about people loving each other and missing out and getting it right, and it's pretty incredible."

The all-star cast of 'Valentine's Day' includes Jessica Alba, Jessica Biel, Bradley Cooper, Patrick Dempsey, Jamie Foxx, Jennifer Garner and Anne Hathaway among others.
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