Tim P. Whitby/Getty Images Europe, Jason Merritt/Getty Images North America, Ilya S. Savenok/Getty Images North America
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They say that movies are timeless, but it might be the actors who star in them who will last forever. Whether it's just good genes, the money for upkeep, or a membership to an underground cabal of Hollywood vampirism, some stars never seem to age, or, better yet, seem to get younger with time. Check out these side-by-side comparisons of celebs through the years and see if you can pick out which photo is the older one and which is from present day.