The Upright Sinner (1931)

Original title: Der brave Sünder

Leopold Pichler is a very orderly and trustworthy chief cashier who is asked by his boss to get a large sum of money from the bank which the boss urgently needs on a trip to Vienna. Due to some circumstances, getting the money takes a little longer than expected and the director leaves for Vienna without it. But Pichler sees himself as a reliable man, and so he and his assistant Wittek follow the director to Vienna with the money kept in a bag. In Vienna, the two provincials however are mistaken for guests of the director and spend an evening at a posh night club. But when it transpires that the director actually won't come to the night club that evening, Pichler and Wittek have to pay the bill with the money from the bank. And their subsequent attempts at reimbursing the money lead to situations of ever-increasing hilariousness...