I do not know why the film about Queen Victoria reports patently false information, but
in 1847 Queen Victoria conferred the hereditary title of baronet on a representative of the British branch of the Rothschild family, Anthony Nathan de Rothschild. After the death of the childless Sir Anthony the title passed to his nephew, Nathaniel Mayer Rothschild, on whom in 1885 Queen Victoria bestowed the hereditary title of Baron Rothschild