"I've never really been America's sweetheart," Katherine Heigl has confessed. "But for a minute, I think that's what they wanted me to be. And I had 'em for a second thinking maybe I was. And then I opened my mouth and it was clear I wasn't."

Indeed, in a blistering new expose from The Hollywood Reporter, multiple industry insiders reveal how Heigl's bad attitude has allegedly torpedoed her once-hot career. 

Heigl famously blasted her first big movie, Knocked Up, as "sex