 Lavié was soon cast in a number of theatre roles, debuting on the stage at the National Comedy Theatre in Gregorio de Laferrère's "Locos de verano" ("Summer Madness").His performance earned him an invitation to Mexico City, where he was cast in the title role in a local production of "Man of La Mancha" in 1968.His 1964 film role also opened doors for Lavié in cinema and he starred in 17 films in subsequent years, notably Lautaro Murúa's "Un guapo del 900" ("The Cad") in 1971 and Leopoldo Torre Nilsson's "Boquitas pintadas" ("Painted faces") in 1974.