The novel was the first led by the actress Leonor Seixas.
The soundtrack of Saber Amar, Rodrigo Menezes, whose character also named Rodrigo Macedo Vaz, signed two songs, and so began an unsuccessful singing career.
The novel was the most exported TVI. Several million people have seen it: Portuguese, Russian, Ukrainian, and part of the population of Latin America.
The soap opera was the first of TVI, which had an additional cast, with cameos well composed, with more than ten names.
Maria Emilia Correia shone in the role of comic gaga Helena Vaz Macedo. Another highlight is the excellent double Ruy de Carvalho and Manuel Melo.