Zwei Wochen Chef (2007)

In the beginning, the courageous clothing salesclerk just wants to give "them up there" on the executive floor a good telling-off, protesting the totally unjustified closure of their chain store. This triggers off a series of turbulent events, though; and by the time she finally makes it onto the executive floor, she is mistaken for a new board member. Once she overcomes her shock, she begins to realize the unforeseen opportunities this offers: She could save her colleagues' jobs and bring a fresh wind to the corporation.