James Franco was rather unpleasantly surprised to find out a simple kiss in the movie Milk became a straight up sausagefest due to Sean Penn. Page Six:
In case you don't know, Milk is the story about the first-ever openly gay man to be elected to office. I really don't care to see it because gay rights don't interest me all that much, just like my right to sit around all day and collect welfare checks probably doesn't interest you. But now that I know James Franco and Sean Penn get it on, I might go to the theater and, during that scene, stand up and yell "HA HA GAY!" then run out.