La mujer de mi hermano ("The wife of my brother") is a 2005 Mexican film based on the book of the same name written and adapted to the screen by Peruvian author Jaime Bayly. It is the second film of Stan Jakuvowicz, who in conjunction with Peruvian director Ricardo de Montreuil produced the short film Amiga.

Another book, No se lo digas a nadie ("Don't tell anyone"), of Jaime Bayly had been adapted to the screen and directed by Francisco Lombardi. The author, however was not pleased with the way the story was adapted and felt that the script had not been loyal to the novella. He declared to the Spanish news agency EFE that in this occasion the film had enriched the novel and was impressed by the acting, direction and photography. He added that the film should be seen prior to reading the novel, contrary to common counsel by authors.

The film's cast includes Uruguayan actress Bárbara Mori, Colombian actor Manolo Cardona, Peruvian actor Christian Meier, Mexican actress Angélica Aragón, Venezuelan actress Gaby Espino and Chilean musician Beto Cuevas who is the lead singer for La Ley.

By the time the movie debuted in the Iberoamerican Film Festival of Huelva (Spain) on November 26, 2005, it had already been seen in Mexico by 850,000 people. The movie won second place at the festival that year, after Luis Mandoki's Voces inocentes, and was expected to reach one million total spectators and two million dollars on the box-office.

In the first week of exhibition it had a box-office output of nine million pesos (approximately 800,000 dollars). The movie opened on the first stop after Chicken Little and The Legend of Zorro.

Zoe is an attractive woman who has been married for 10 years to Ignacio, her bisexual husband. After realizing that her marriage lacks passion and surprise, she allows the possibility of finding these sensations with her husband's brother Gonzalo. This love triangle will cause a game of vengeance, secrets and passions to develop.