The Academy of Motion Picture Arts and Sciences has just made Oscar rule and eligibility changes in the acting and International Film categories that have to rank with the most significant in its nearly 100-year history. From this point on in the acting categories, both lead and supporting, actors can be nominated for more than one performance in those individual categories if those performances place in the top five votes. In other words, if Leonardo DiCaprio has two great lead performances in the same year, he can now be nominated for both for Best Actor. The same would apply if he also had multiple supporting performances. RELATED: All The Best Picture Oscar Winners – Photo Gallery Previously, unlike every other category, if an actor had movies that gained two or even three of the top five votes, only the performance that got the most votes would be eligible. The Academy’s Board of Governors now has thrown that stipulation out the window to match the way other categories always have operated.…