This rarely seen film, screening from a 35mm print, is part of the Martin Scorsese season at the Prince Charles. Details here.
Time Out review:
Scorsese's tribute/parody/critique of the MGM musical is a razor-sharp dissection of the conventions of both meeting-cute romances and rags-to-riches biopics, as it charts the traumatic love affair between irresponsible but charming jazz saxophonist De Niro (dubbed by George Auld) and mainstream singer Minnelli. On an emotional level, the film is a powerhouse, offering some of the most convincingly painful rows ever shot; as a depiction of changes in American music and the entertainment world, it is accurate and evocative; and as a commentary on showbiz films, it's a stunner, sounding echoes of Minnelli's own mother's movies and career (particularly A Star Is Born) as well as other classics like On the Town and the first A Star Is Born (in which Stander also appeared). Superbly scored, beautifully designed by Boris Leven to highlight the genre's artificiality, and performed to perfection.
Here (and above) is the trailer.