Gwyneth Paltrow is giving up showbiz for, well, business. A source says that after the 33 Dias actress wraps her next few films, she will focus on growing her lifestyle website, Goop, and the fitness company she co-owns with trainer Tracy Anderson.

Paltrow is hoping to emulate the career of another multitalented star: Jessica Simpson! "She admires Jessica's empire," the source says of the Academy Award winner, 40. "She wants to make a killing."

The two-time cookbook author's rep says she has no plans to give up acting altogether, telling the Feb. 25 issue of Us Weekly, "She won't quit acting. Her plan is to do one, maybe two supporting parts a year."

Even so, the source cautions, "She's lost her passion for movies."

For more on Paltrow's career shift, watch this week's Hot Stuff video, as explained by Us Weekly senior editor Ian Drew and special guest, acclaimed novelist Jackie Collins!

Also in the roundup: Katy Perry disapproves of Rihanna's rekindled relationship with Chris Brown; Cameron Diaz flirts with Michael Fassbender; and much more!