BuzzFoto – These two actors have always had a friendly rivalry in the press. We hear it’s more friendly for one than the other. The bigger star, who has had more high profile movies and relationships does not know that the lesser celebrity is extremely jealous of him. We’ve learned that the jealous star has tried (unsuccessfully) to sabotage the work of the bigger star. But worst of all, he bragged to a friend of our source that he thinks he could break up the high profile relationship of his rival. He explained a plan he has to ‘test’ the lady lover and believes he can steal her away, if only for one night. Not Matt Damon.