Cuando habla el corazón on AllMovie

Three lifelong friends from different backgrounds drift in and out of each others lives in this musical drama that proved one of Mexican cinema icon Pedro Infante's first big hits. After spending their childhood years together, Cecilia (Maria Luisa Zea), Miguel (Infante), and Cruz (Victor Manuel Mendoza) eventually lose touch and go their separate ways. When Miguel's girlfriend dies shortly after giving birth, her brother Cruz agrees to care for his sister's young child without realizing that Miguel is the father. Meanwhile, Cecilia harbors a deep love for Cruz, but can't seem to find the means of expressing her true feelings. When Cruz finds out that it was actually his old friend Miguel who fathered his sister's child, he insists that his old friend agree to take part in a duel to the death.