John Hopewell Chief International Correspondent Linking two top players on the Spanish TV scene, Barcelona studio Filmax has acquired international sales rights to Spanish comedy “Co-Husbands,” whose backers include Telecinco Cinema, producer of Guillermo del Toro’s “Pan’s Labyrinth” and J.A. Bayona’s The Impossible.” Filmax will unveil a trailer to clients at this week’s Berlin European Film Market, before the film’s release in Spain on March 10. The second feature from Lucia Alemany (“Innocence”), ”Co-Husbands” toplines “House of Flowers” star Paco León. In a gender flip set-up, it turns on Emilio and Tono who both receive phone calls that their wives are in comas after a ski-resort avalanche. At the hospital admissions desk, they make a startling discovery: their wives are, in fact, the same person … Laura. Forced to wait together until Laura regains consciousness, Emilio and Toni engage in a battle to prove who is her one and only true husband.