MADRID — Robert Duvall and Jeremy Irvine (“War Horse”) will star in road movie “A Night in Old Mexico,” Spanish showman-turned-director Emilio Aragon’s sophomore helming effort.The English-language digital shoot kicks-off Tuesday in Texas, running through August. Penned by Bill Wittliff (“Legends of the Fall,” “The Perfect Storm”), “Night” follows the developing relationship between a man (Duvall) and his grandson (Irvine), combining action, tragedy and romance. Pic also toplines Colombia’s Angie Cepeda (“For the Good of Others”) and Spaniards Luis Tosar (“Miami Vice”) and Javier Gutierrez (“Torrente 4″). “A Night in Old Mexico” is produced by Madrid-based Globomedia Cine, the film production arm of Spanish TV giant Globomedia, which Aragon co-founded, as well as private Spanish investment fund Quentin Quayle. Duvall and longtime producing partner Rob Carliner will take producer credits. Multi-hyphenate Aragon, who is also prexy of Spanish broadcaster La Sexta, made his helming debut in 2009 with dramedy “Paper Birds.” Pic snagged a healthy €2 million ($2.5 million) at the local B.O. handled by Hispano Fox Film, and won several international nods, including the audience award at the 37th Seattle film fest. Robert Duvall is repped by Nigel Meiojas at ICM Partners. John Hopewell contributed to this article.