Casa de mi padre (House of My Father or simply My Father's House) is a 2012 Spanish-language American Western comedy film directed by Matt Piedmont, written by Harper Steele, and starring Will Ferrell, Gael García Bernal, Diego Luna and Génesis Rodríguez. It was described to be in the style of an "overly dramatic 1970s telenovela" and tells the story of Armando Álvarez, who must save his father's ranch from a powerful drug lord. Casa de mi padre was released on March 16, 2012.

Armando Álvarez (Will Ferrell) has lived and worked on his father's ranch in Mexico his entire life. As the ranch encounters financial difficulties, Armando's younger brother Raúl (Diego Luna), shows up with his new fiancée, Sonia (Génesis Rodríguez). It seems that Raúl's success as an international businessman means the ranch's troubles are over as he pledges to settle all debts his father has incurred. But when Armando falls for Sonia, and Raúl's business dealings turn out to be less than legitimate, all hell breaks loose as they find themselves in a war with Mexico's most feared drug lord, the mighty Onza (Gael García Bernal).

Dan Haggerty, who famously portrayed the titular character in the popular television series The Life and Times of Grizzly Adams, appears as himself in a post-credits cameo. The opening scene features the lips of Christina Aguilera who sings the eponymous song.

In August 2010, Emilio Diez Barroso and Darlene Carmaño Loquet of NALA Films announced that they were teaming up with Will Ferrell, Adam McKay, Kevin Messick, and Jessica Elbaum of Gary Sanchez Productions to produce the Spanish-language comedy, Casa de mi padre, starring Will Ferrell. NALA Films was to finance the project; it was set to start filming in September 2010 in California. Producer Darlene Caamaño Loquet stated, "We are just thrilled he [Ferrell] is on board and are moving full steam ahead since we have one month to teach him Spanish".

In October 2010, it was reported that Gael García Bernal and Diego Luna had joined the cast along with Génesis Rodríguez, Pedro Armendáriz Jr., Héctor Jiménez, and Adrian Martinez. Bernal will play a family friend, Luna will play Ferrell's brother and Rodriguez will play Ferrell's love interest. Matt Piedmont, a frequent collaborator with Will Ferrell, was named as the film's director. It was also reported that the plot will be told in an overly dramatic telenovela style and feature English subtitles. In January 2011, a synopsis of the plot was released along with a report that the title changed to Untitled Spanish Comedy. However, in April 2011, a teaser trailer for the film was released under the name Casa de mi padre.

The film was shot in 24 days on a budget of about $6 million. Piedmont pitched the project to singer Christina Aguilera who agreed to a cameo scene for the film's opening credits. It features her intensely red lips as she sings the eponymous, flamenco-inspired song. The scene was inspired by the opening from the 1975 musical film The Rocky Horror Picture Show.

In November 2011, Pantelion Films, a joint venture between Lions Gate Entertainment and Televisa, acquired the rights to distribute the film in the United States and set a release date of March 16, 2012. Upon release, the film played on 368 screens, a "fraction of what Mr. Ferrell's movies typically receive." Televisa gave NALA Films approval over all aspects of the film's $8 million marketing campaign which was spent mostly on advertisements on TV networks such as Univision, a partly Televisa owned company.

The U.S. premiere was held on Wednesday, March 14, 2012, at Grauman's Chinese Theatre in Hollywood, California.