[1] In 1908 Ambrosio produced and directed The Last Days of Pompeii, a major hit which helped trigger a fashion for Italian historical epics, generally set in the Classical era.

[2] Over the next decade Ambrosio oversaw a number of popular films and was able to export them to lucrative foreign markets such as Britain and America.

Like other Italian filmmakers, Ambrosio struggled during the crisis that hit Italian filmmaking following the First World War and his career appeared to have been ended by the commercial failure of his 1924 epic Quo Vadis.

However, he returned from retirement to head production at Scalera Films between 1939 and 1943.

[3] This biographical article related to film in Italy is a stub.