Trueba's educational background began at the esteemed Facultad de Ciencias de la Información, where he pursued studies in Imagen. This foundation in the visual arts would later serve as a springboard for his illustrious career in cinema criticism. In fact, Trueba's expertise in film analysis was sought after by prominent publications, including the influential newspaper 'El País' and the popular entertainment guide 'La Guía del Ocio'. Moreover, he took the initiative to establish the journal "Casablanca", a testament to his entrepreneurial spirit and passion for the film industry.
In the realm of cinema, Trueba's breakthrough came with the release of his debut feature, Opera Prima, in 1980. This early success was marked by its adherence to the traditional "comedia madrileña" style, a genre that Trueba would later perfect. His subsequent collaboration with producer Andrés Vicente Gómez would yield even greater success, as evidenced by the massive hit Sé infiel y no mires con quién, released in 1985. This partnership would go on to produce a string of box office successes, cementing Trueba's status as a prominent figure in Spanish cinema.