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.