Can anyone help me out with this??

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I happen to watch a very old movie clip, i dunno which movie it is, may be i can just describe the scene which i saw, it is a comedy movie..... There are 5 people in the room, 3 men and 4 women, they are discussing sharin some percent of money they decide to divide 25% of the money to each 5 of them..... Here goes the scene man1: 25% divided by 5 gives 5% to each one And then another guy opposes man1 saying that man2: 25% divided by 5 gives 14 man1 happens to explain that 25/5= 5 then the guy who opposed explains as below 25/5= 14 then man1 comes to a conclusion that he can make him understand only by adding 5 time 14 14 14 14 14 14 ------- he says that 4+4+4+4+4=20 and then the guy whi opposed adds 20 with 1+1+1+1+1 and says it 25 and man1 gets fed up.... This wat i happened to saw in the movie clip, it was awesome really Can u guys help me out in finding wat movie it is, it is a very old english movie