Cinema of Argentina because harassment led to the exile of a number of prominent actors, among them Alberto de Mendoza, Arturo García Buhr, Niní Marshall and Libertad Lamarque, whose rivalry with her colleague Eva Duarte turned against her when the latter became First Lady in 1946. Argentine cinema began losing viewership as foreign titles gained an increasing foothold in the Argentine market. The problem eventually became so bad that Argentina tried to curb the influx with the Cinema Law of 1957, establishing the "Instituto Nacional de Cinematografía" to provide education and funding. Among the era's most successful films were: "Historia de una noche,"
First Lady of Mexico no official duties and brings no salary. Nonetheless, she attends many official ceremonies and functions of state either along with or in place of the president. There is a strict taboo against the First Lady holding outside employment while occupying the office. Usually the First Lady takes an important (ceremonial) post as head of the "Desarrollo Integral de la Familia" (DIF) ("Integral Family Development"). However, this did not occur during the Fox administration when First Lady Marta Sahagún founded the national philanthropic organization "Vamos México". Two First Ladies have been active politicians: Martha Sahagún, who married Vicente Fox during his