Heidi Montag aka Plastic Parts, has been acting like a diva on the set of The Hills. Her excuse is that she is “a movie star now.”

PerezHilton.com reported earlier Monday that Montag, 23, showed up with four bodyguards and “Audrina [Patridge], Kristin [Cavallari], Stephanie [Pratt] and Lo [Bosworth] were all shocked.” She then “refused to take part in a group shot, even though she had agreed to it beforehand.” (MTV will Photoshop her in later, it was reported.)

I’m still not sure how to address this one….Heidi’s clearly delusional. We’ve explained to her that adult films don’t actually count as being a “movie star.”

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