What is the movie in which a comic man proves that a certain number is...

mariani

New member
...equal to something els funny? There's a movie and a few clips on youtube when a man proves to his boss that a multiplication actually equals something different; it was something along the lies of 7 X 5 = 25 or something. Sorry for the crudeness of the question. Also the movie is quite old, black and white. Thanks for this.
 
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