Jessica Simpson Passed Over for Dallas Role

Katie Cassidy must be in 7th Heaven. The star of that show has somehow beaten out Jessica Simpson - and former Laguna Beach star/Nick Lachey sex slave - Kristin Cavallari - for the role of Lucy Ewing in the upcoming film version of Dallas.

Cassidy (pictured) is the daughter of former teen idol David Cassidy. She's currently starring in the Adam Sandler vehicle, Click.

"Producers wanted to steer clear of the drama and also thought Katie was simply better for the role," a source told Us Weekly.

Jennifer Lopez has been cast as alcoholic Sue Ellen and is very spoiled. She also allegedly didn't want Simpson as a costar in the upcoming movie because "she's hoping for a no-name actress, said our source. "Jennifer doesn't want a diva on the set."

In that case, we assume she'll soon be removing herself from it.

Even the original Lucy, Charlene Tilton, 47, didn't want to see Simpson in the role, actually preferring 19-year-old Lindsay Lohan.

"Jessica is beautiful, but too old," said Tilton. "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."

And a very thin one.