If I Did It was a movie.
The phrase "I know it when I see it" is a colloquial expression by which a speaker attempts to categorize an observable fact or event, although the category is subjective or lacks clearly defined parameters
 Rather, Simpson had accepted, against Pardo's advice, $600,000 from the publisher ReganBooks and its parent company News Corporation to say he had written the book and to conduct an associated television interview on Fox

