Watch a Greer Garson movie today in honor of the Irish! Love her.
Or if you don't have one of her Oscar-roles handy, Kiss an Irish Movie Star. There are many too choose from though the Irish men far outnumber the women when it comes to Hollywood success. Pick a pair of lips to smooch or try to guess who they are before you commit to a makeout session.
UPDATE: The answers are after the jump now that you've collectively solved the puzzle.
Congrats to The Film Junkie who guessed the two hardest ones.