Question: What nationality was the famous opera composer depicted in the movie Puccini?

Context articles: Wein, Weib und Gesang
Puccini (film)
Jacopo Puccini
Giacomo Puccini
Antônio Carlos Gomes
Bidu Sayão International Vocal Competition
L'incantesimo
Camille Erlanger
Luigi Illica
Giuseppe Mosca

Strauss' works at this age displays the Waltz King at the height of his creative powers, and it was no less evident in this waltz with its 137-bar introduction, combining tranquil melodies with superb orchestration.
 Its admirers include the famous opera composer Richard Wagner and Strauss' good friend Johannes Brahms.
Puccini is a 1953 Italian drama film directed by Carmine Gallone.
 It stars actor Gabriele Ferzetti in the role of Giacomo Puccini.
Jacopo (Giacomo) Puccini (] ; 26 January 1712 16 May 1781) was an 18th-century Italian composer who lived and worked primarily in Lucca, Tuscany.
 He was the first of five generations of composers, the most famous of whom was his great-great-grandson, the opera composer Giacomo Puccini.
Giacomo Antonio Domenico Michele Secondo Maria Puccini (] ; 22 December 1858 29 November 1924) was an Italian opera composer who has been called "the greatest composer of Italian opera after Verdi".
Antônio Carlos Gomes (] ; Campinas, July 11, 1836 – Belém, September 16, 1896) was the first New World composer whose work was accepted by Europe.
 The only non-European who was successful as an opera composer in Italy, during the "golden age of opera", contemporary to Verdi and Puccini and the first composer of non-European lineage to be accepted into the Classic tradition of music.
The Bidu Sayão International Vocal Competition (Portuguese: Concurso Internacional de Canto Bidu Sayão) is a singing competition held at the city of Belo Horizonte in Brazil named after that country's most famous opera singer, Bidu Sayão.
 It is a competition open to singers of any nationality for up-and-coming young singers and as such has an age restriction.
 The competition is divided between male and female participants and is the most important vocal competition in Latin America.
L'incantesimo is a short opera in one act by Italian composer Italo Montemezzi.
 Its libretto was written by playwright Sem Benelli who had previously collaborated with the composer on his most famous opera, "L'amore dei tre re".
 Benelli finished the text in 1933, and Montemezzi started work on the score, but the composer's unpleasant relationship with Mussolini's government made Italy inconducive to creative work.
 Montemezzi resumed work on "L'incantesimo" during the summer of 1943 in Beverly Hills, his home during a 10-year sojourn in the United States.
 Upon completion of the score, he offered it to the NBC Symphony, professing admiration for their orchestra.
Camille Erlanger (25 May 186324 April 1919) was a Parisian-born French opera composer.
 He studied at the Paris Conservatory under Léo Delibes (composition), Georges Mathias (piano), as well as Émile Durand and Antoine Taubon (harmony).
 In 1888 he won the Prix de Rome for his cantata "Velléda".
 His most famous opera, "Le Juif polonais", was produced at the Opéra-Comique in 1900.
Luigi Illica (9 May 1857 – 16 December 1919) was an Italian librettist who wrote for Giacomo Puccini (usually with Giuseppe Giacosa), Pietro Mascagni, Alfredo Catalani, Umberto Giordano, Baron Alberto Franchetti and other important Italian composers.
 His most famous opera libretti are those for "La Bohème", "Tosca", "Madama Butterfly" and "Andrea Chénier".
Giuseppe Mosca (1772 in Naples – 1839 in Messina) was an Italian opera composer, the older brother of Luigi Mosca, also an opera composer.
 He is mainly remembered as the composer who said that Rossini copied in La pietra del paragone the "crescendo" from his opera "I pretendenti delusi".