It fits another Grant quote even better. When he arrived at his own AFI tribute with Peter Bogdanovich, the girl taking their invitations looked at Grant's then Grant, then the invitation again, then said, "You don't look like Cary Grant," to which Grant sublimely replied, "Well, nobody does!"
Personally, I was never a big fan of Cary Grant's later period. It's full of quaint, occasionally charming fluff pieces, and, every once in a long while, a movie truly worthy of his varied talents like An Affair To Remember, Charade and Indiscreet.
Would have much preferred just about any of...