7th Heaven actress KATIE CASSIDY has beaten out Jessica Simpson and KRISTIN CAVALLARI to win the coveted role of LUCY EWING in the big screen remake of Dallas. The 19-year-old star is the daughter of former teen idol David Cassidy and the girlfriend of current teen heart-throb Jesse Mccartney. A source tells American publication Us Weekly, "Producers wanted to steer clear of the drama and also thought Katie was simply better for the role." Charlene Tilton, who played original Lucy on the hit television series, favoured Lindsay Lohan over Jessica Simpson for the role saying, "Jessica is beautiful, but too old. "I had just turned 17 when we started filming. It's more exciting if Lucy is doing all of these things... out of high school. (Lindsay Lohan) is a great choice." Cassidy, who is also a singer and model, most recently appeared in CLICK as Adam Sandler's daughter.