Many young boys and girls have posters of a celebrity crush up on their bedroom walls.
It's pretty normal, right?
Leaving notes and candy in the hope your crush — who also happens to have been dead for 40 years — will come and collect it, though — that's slightly less normal.
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In the clip above from Jimmy Kimmel Live, Colin Farrell tells the story of the crush he had on Marilyn Monroe when he was...