Washington, January 8 : Kate Hudson left fellow onscreen foe Anne Hathaway with a bruised head after a planned slapping scene took a real turn on the sets of `Bride Wars'.

In the upcoming romantic comedy, both the stars, who play friends but declare a `war' after finding out that their weddings were to be held on the same day, have denied having had rifts between them onset.

But both the actresses confessed there had been one scene that had gone terribly wrong leaving Hathaway clenching an ice-pack, reports Contactmusic.

Hathaway told People magazine: "Did you notice Kate''s enormous wedding ring in the movie? Imagine, surrounded in a cloud of tulle, Kate Hudson''s hand with the 9.000 carat diamond coming out and smacking you across the face and staying in character."

Embarrassed Hudson added: "It was not intentional. I hit her and I went, ''Oh God'', and she''s like, ''No, I''m fine, keep going.''

"And then I saw Annie sitting in a chair with an ice pack!" (ANI)