Pedersoli's first film role was in
Quel fantasma di mio marito, an Italian comedy short released in 1950. In 1951, he played a member of the
Praetorian Guard in
Quo Vadis, an epic film shot in Italy made by
MGM and directed by
Mervyn LeRoy. He signed a contract with
RCA Records to write lyrics for singers such as
Ornella Vanoni and
Nico Fidenco and soundtracks. In the following years, his son Giuseppe was born (1961), followed by Cristiana (1962), his contract with RCA expired and his father-in-law died (1964). Pedersoli became a producer of documentaries for the national public broadcasting company
RAI.
Partnership with Terence Hill in
They Call Me Trinity by
Enzo Barboni (1970) In 1967, film director
Giuseppe Colizzi offered him a role in ''
God Forgives... I Don't!. On the set, Pedersoli met Mario Girotti (Terence Hill). (Although Pedersoli appeared in the same movie as Girotti in Hannibal'' in 1959, they did not meet during filming). The film director asked the two actors to change their names, deeming them to be too Italian-sounding for a Western movie: Pedersoli chose Bud Spencer, with Bud inspired by
Budweiser beer and Spencer by the actor
Spencer Tracy. They went on to become a film duo. While Hill's characters were agile and youthful, Spencer always played the "phlegmatic, grumpy strong-arm man with a blessed, naive child's laughter and a golden heart". Overall, Hill and Spencer worked together on 18 films, including (using their most common U.S. titles) the
spaghetti Westerns
They Call Me Trinity (1970) and its sequel,
Trinity Is Still My Name (1971). Their last teaming,
Troublemakers (1994), was also in this genre. '' (1973) Many of these have alternative titles, depending on the country and distributor. Some have longer Italian versions that were edited for their release abroad. These films gathered popularity for both actors, especially throughout much of Europe and parts of Asia and South America. Because of the duo's huge popularity, many producers wanted to exploit their likeness with visually similar duos. Most notable were
Paul L. Smith (adopted name Adam Eden in later years, sometimes credited Anam Eden) and
Michael Coby (real name Antonio Cantafora) with at least 6 movies in
Bud & Terence-fashion from 1973 to 1977, and
István Bujtor with 6 movies in
Piedone-fashion from 1981 to 2008. In the Italian versions of his films, Spencer was generally dubbed by actor
Glauco Onorato due to his thick Naples accent, although he was voiced by
Sergio Fiorentini in
Troublemakers,
To the Limit (1997) and the
Extralarge series (1991–93). For English dubs, Spencer was usually voiced by Robert Sommer,
Edward Mannix or Richard McNamara, although he occasionally provided his own voice. Spencer wrote the complete or partial screenplay for some of his movies. His feature film career slowed down after 1983, shifting more toward television. In the 1990s, he acted in the television action-drama
Extralarge. His autobiography was published in 2011. In addition, Spencer also published a recipe book including his favorite dishes. ==Political career==