Geri Halliwell to star in Dallas?

Geri Halliwell is to star in the big-screen remake of 'Dallas'.The former Spice Girl, who is desperate for a Hollywood break, is set to appear in the hit film after her ex was hired to write the screenplay.The pregnant singer- who had a cameo role in US hit series 'Sex and the City'- has had her ex, and the father of her unborn baby, Sacha Gervasi, write a part in the movie especially for her.The feisty red-head is said to be thrilled to be possibly starring alongside Hollywood heavyweights Jennifer Lopez and John Travolta in the movie.A source said: "Geri's delighted. It's a huge opportunity. She knows that if she puts in a good performance this could be her Hollywood break.'Apart from her acting aspirations, Geri has also been reported to be busy organising the long-awaited Spice Girls reunion.The singer, who shot to fame as Ginger Spice in the girl group, is rumoured to be reunite with her bandmates for a concert this summer.