Hanks' acceptance speech for the 1993 film Philadelphia is infamous for being one of the most poignant and poetic thanks given at the awards ceremony. However, There is a story behind the words dramatic enough to rival the acting.
During the speech, Tom thanks his high school drama teacher, Rawley T. Farnsworth, saying he is one of 'the greatest gay Americans' he knows. So what's the problem? Farnsworth hadn't actually came out of the closet yet.
Despite the failure, this cloud had a silver lining. The story of a teacher being brought out of the closet by a former pupil inspired the film In & Out. You can watch Tom Hank's speech here.