 Baur appeared in about 80 films between 1909 and 1942.He gave an acclaimed performance as the composer Ludwig van Beethoven in the biopic "Beethoven's Great Love" ("Un grand amour de Beethoven", 1936), directed by Abel Gance, and as Jean Valjean in Raymond Bernard's version of "Les Misérables" (1934).He also acted in Victorin-Hippolyte Jasset's silent film, "Beethoven" (1909), and in "La voyante" (1923), Sarah Bernhardt's last film.