Beyonce Knowles found it difficult to maintain her figure while filming Dreamgirls - she developed a fondness for pork skins. The star embarked on a dramatic weight-loss programme to slim down for her role as Deena Jones in the Oscar-winning movie, but admits it was hard to keep the weight off when such tasty treats were on offer during filming. She says, "It is so tempting on film sets. "They have these tables with every kind of food. I'd eat pork skins because that's the closest thing to chips."