Jessica Simpson is no diva according to her co-star Vivica A. Fox from the upcoming film Major Movie Star’s that was shot in Louisiana.

Fox, a favorite on Dancing with the Stars, tells PEOPLE she was “shocked” when a story surfaced from Major Movie Star’s Louisiana location accusing Simpson of being a “spoiled brat” by supposedly refusing to walk from one place to the next without a driver, eating alone in her trailer and barely speaking to her costars, especially Fox.

“Those vicious lies they put out were just that – lies,” Fox, 43, said Saturday during an event for the fashion label Young, Fabulous & Broke at the LG House in Malibu.

One diva sticking up for another. It’s better than Chi-O’s defending their stringent pledging system.

P.S. This film co-stars Steve Guttenberg.