Katie Holmes gets skinny for Oscar

At Vanity Fair’s Oscar after Party at Morton’s eatery in L.A. on Feb 25, the Katie Holmes’s strapless Armani gown revealed a bony back, prominent clavicle and spindly arms - all of which shocked many in the A-List crowd reports Star Magazine!

“Katie looks very thin,� confirms an insider. At an estimated 125 pounds, 5’9� Katie, 28, has already lost more than the 40 pounds she gained carrying daughter Suri, thanks to a 1,000 calorie-a-day, high protein, low-fat diet, sources say. The weight loss regimen was designed to squeeze Katie into her slim, ivory silk Armani wedding gown for her November 2006 wedding to Tom Cruise.

Her quest for fitness is now linked to her quest for career super stardom. “She wants to win an Oscar,� says another source. It seems as if she might be using Tom’s ex as her role model. Katie was seen eagerly schmoozing with ultra thin Nicole Kidman – who landed an Oscar in 2002 for The Hours – at the Vanity Fair party. “I think Katie feels she needs to be skinny to be successful,� says the source. You could call it ‘Oscar Fever,’ the figure-ravaging syndrome that’s infecting more and more ambitious actresses – with horrifying results! “It’s almost like a psychological

In other news, Tom Cruise can't bear to leave Katie Holmes side - even when she's working, it has been reported.

The Mission Impossible star will allegedly travel to the set of wife Katie's new movie Mad Money when filming begins in Louisiana next month.

A source told the New York Post newspaper: "Tom has called producers and told them he will be on set every day.

"He wants to observe what's going on and will probably help Katie out."

Producer Jim Acheson said: "I don't know if that's the case, so I can't confirm. We are happy to have both Katie and Tom on set."