I was reading about this drama on ONTD, I should have known it was probably true! Apparently there was a “blind item” recently posted that could be about this very situation.

This B+/A- movie actor had a great relationship with his C list movie actress co-star on one of his recent movies. It didn’t lead to anything romantic for them, but the actress did invite her sister to the set. Well one thing led to the other and the next thing you know the sister of the C list actress was pregnant. When our actor found out, he dumped the sister and is saying the child isn’t his. It made for a VERY tense time between the actress and the actor on their recent promotional tour.

It appears that a potential candidate as Jude Law’s baby momma is none other than Rachel McAdams sister Kayleen. She was the make-up artist on the film Sherlock Holmes set which starred Jude and her sister. She is reportedly 7 months along.

Jude is said to have been unaware of the pregnancy until very recently when Kayleen called him to let him know.