Desk Set

Desk Set released as His Other Woman in the UK is a 1957 American romantic comedy film directed by Walter Lang and starring Spencer Tracy and Katharine Hepburn. The screenplay was written by Phoebe Ephron and Henry Ephron from the 1955 play, The Desk Set, by William Marchant.

The network is negotiating a merger with another company, but is keeping it secret. To help the employees cope with the extra work that will result, the network head has ordered two computers, or electronic brains. Methods Engineer and efficiency expert Richard Sumner Spencer Tracy, the inventor of EMERAC Electromagnetic MEmory and Research Arithmetical Calculator, is brought in to see how the library functions, to figure out how to ease the transition. Though extremely bright, as he gets to know Bunny Watson, he is surprised to discover that she is every bit his match.When they find out the computers are coming, the employees jump to the conclusion they are being replaced. Their fears seem to be confirmed when everyone on the staff receives a pink slip printed out by the new payroll computer. Fortunately, it turns out to be a mistake the machine fired everybody in the company, including the president. ........

Source: Wikipedia