|Directed by||Lionel Baier|
Longwave (French: Les Grandes Ondes (à l'ouest), Portuguese: As Ondas de Abril) is a 2013 Swiss-French-Portuguese comedy-drama film directed by Lionel Baier. The movie is set in 1974, based on a true story about a Swiss production team working for Radio Suisse Romande, who are assigned to produce a puff piece in Portugal but instead witness the Carnation Revolution. The film's principal cast are Valérie Donzelli, Michel Vuillermoz, Patrick Lapp, and Francisco Belard.
The film débuted at the 2013 Locarno Film Festival. The US premiere of Longwave was at the Palm Springs International Film Festival on January 10, 2014. The distributor in France is Happiness Distribution, and in Switzerland is Pathé; the film has also been sold to Zeta Films for distribution in Argentina, Uruguay, Chile, and Paraguay.
The reviewer for Variety found that the director had demonstrated “his thoroughgoing knowledge of and delight in film history, yet his striving for a 1970s screwball vibe feels too forced and artificial”. In Público's Ípsilon, Luís Miguel Oliveira gave the film two out of five stars.
The film was nominated for the Swiss Film Award in three categories: Best Fiction Film, Best Screenplay (Lionel Baier and Julien Bouissoux), and Best Actor (Patrick Lapp)  but did not win, losing to I Am the Keeper in each category.
- "Longwave". Cineuropa. Retrieved 2014-03-29.
- Stefania Summermatter (2013-08-12). "Une Comédie sur la Piazza Grande". swissinfo.ch. Retrieved 2014-03-29.
- "Longwave (Les grands [sic] ondes à l'ouest)". Retrieved 2014-03-29.
- John Hopewell (2013-08-13). "Films Boutique Sells 'Longwave' at Locarno". Variety. Retrieved 2014-03-29.
- Jay Weissberg (2013-08-19). "Locarno Film Review: 'Longwave'". Variety. Retrieved 2014-03-29.
- "Turismo revolucionário". Público (in Portuguese). Retrieved 2014-05-22.
- "Nominations for the 2014 Swiss Film Award". 2014-01-29. Retrieved 2014-03-29.
- Martin Blaney (2014-03-24). "Keeper wins big at Swiss Film Awards". Screen Daily. Retrieved 2014-03-29.