From Empire Online:

"With 17 Again out this week, we thought we'd take a look at cinema's best old/young actor combinations. After The Curious Case of Benjamin Button such shared jobs may soon be a thing of the past, but in the meantime we can admire the great cinema pairings where it takes two people to fill one character's shoes."


Check out their list of top 15 combos here.

Something tells me casting for a certain "wise old wizard" and a dashing "part time" teacher are sure to make this list...