The Hour of the Furnaces (Spanish: La hora de los hornos) is a 1968 Argentine film directed by Octavio Getino and Fernando Solanas. 'The paradigm of revolutionary activist cinema', it addresses the politics of the 'Third worldist' films and Latin-American manifesto of the late 1960s. It is a key part of the 'Third Cinema', a movement that emerged in Latin America around the same time as the film's release. The work is a four-hour trilogy, divided into chapters and united by the theme of dependency and liberation. The first part - "Neo-Colonialism and Violence" - is conceived for diffusion in all types of circuits, and is the one presented at Cannes Classics.

In a survey of the 100 greatest films of Argentine cinema carried out by the Museo del Cine Pablo Ducrós Hicken in 2000, the film reached the 22nd position. In a new version of the survey organized in 2022 by the specialized magazines La vida útil, Taipei and La tierra quema, presented at the Mar del Plata International Film Festival, the film reached the 6th position.