Paul Rudd is looking for a man...
Not just any man, but a man-friend... a good friend who just happens to be a man. A man who happens to be such a good friend that... ok fine. Paul Rudd is just looking for a 'best man' for his wedding, that's it. And on that premise alone the foundation for a potentially hilarious movie is born...enter I Love You, Man:
'If you see a cool looking guy, strike up a conversation and ask him on a man-date '... I think that line alone sold me on this movie (as if it wasn't enough that Paul and Andy are being featured ).