After working as an illustrator in various jobs in Barcelona, most notably the series " El Coyote " by Joseph Mallo, he emigrated first to France and Belgium, and then to England, combining the work in comics with work as a fashion photographer. In these countries he made contact with filmmakers like Josef Von Sternberg and legendary Hammer producers. It was in England where he directed his first film, "Whirlpool" in 1969, which like many other of his later career, was a horror film, signed with the pseudonym J.R Larraz.
In Spain, he mainly worked for the producer José Frade in both comedies and horror films such as "Rest in Pieces" and "The Edge of the Axe." One of the great successes he achieved for the producer was "Magic Powder" the title of the highest grossing Spanish film.
Larraz co-wrote the story for one Euro-western, “Watch Out Gringo! Sabata Will Return” – 1972.