Eles Não Usam Black-tie (internationally released as They Don't Wear Black Tie) is a 1981 Brazilian drama film directed by Leon Hirszman, based on Gianfrancesco Guarnieri's play of the same name.

[2] The film revolves around a working-class family in São Paulo in 1980.

Otávio, a syndicalist leader, and Romana are the parents of Tião, whose girlfriend, Maria, becomes pregnant.

Fearing to be fired and thus unable to support his now fiancée, Tião does not participate on a strike, which starts a series of family conflicts.

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