También de dolor se canta (You also sing because of sadness) is a Mexican film of the Golden Age of Mexican cinema. It stars Pedro Infante, Irma Dorantes and Guillermina Grin. It also features a number of cameo roles from Mexican actors famous at the time, including Germán "Tin Tan" Valdés, Fannie Kauffman and Pedro Vargas amongst others. It also takes a look inside the workings of cinema at the time, not always showing the nicer side.
The movie starts with Braulio Peláez (Pedro Infante), a schoolteacher, having just fallen off his horse, representing the situation he and his family are in. The next scenes introduce the viewer to his family and their poor financial and social situation. As Braulio stumbles around looking for his glasses, he causes a famous film star, Alfonso de Madrazo (Rafael Alcaide) to crash his car. Braulio offers him to eat at his house as an apology. Braulio's sister and mother, big film fans, immediately recognise Alfonso and attempt to get him to bring the girl, Luisa Peláez (Irma Dorantes) to Mexico City to become a film star. Alfonso agrees and tells them to come to the capital.
Braulio and his sister duly come to the capital and go to a dinner reception which Alfonso is also attending. Luisa goes to talk to Alfonso but he pretends not to recognise them and calls them liars. As Luisa tells Braulio this, there is a competition held to see who can sing the best, with the winner winning a kiss from Elisa Miranda (Guillermina Grin), a famous actress who just finished a song. Braulio gets up to give out to Alfonso and is inadvertendly picked to sing. It turns out he has a great singing voice and Elisa takes a shine to him immediately. After the song, he goes to Alfonso and gets in a fight, knocking down several men. Seeing this, Elisa states that he is the perfect man for her next movie. Braulio is invited to dine with her and the director and they agree to meet the following day.
At the meeting, they convince an initially reluctant Braulio to take the part, but only after he insists that they pretend the part is actually going to his sister, who the executives don't want to hire because of her awful singing voice. The next day, Braulio turns up to do his job and is introduced the film business for the first time. As he wanders through the studio looking for where they're filming, he meets several famous Mexican actors, including Tin Tan, Leticia Palma and Antonio Badú, who he punches thinking he was assaulting a woman, when it was actually just a film. Then, as he goes to record the songs for the movie, he accidentally insults, then does a duet with Pedro Vargas.