Watch FMovies. 'La Mamma Morta’ is an aria from the opera Andrea Chenier that is also well-known for its use in a memorable sequence in the Oscar award-winning Philadelphia. Thirty years on, this new short film from WNO includes a brand-new recording of the aria featured alongside recreated scenes that better encapsulate the perspectives of people living with HIV today. To mark World AIDS Day 2023, the Welsh National Orchestra released a special new version of La mamma morta, featuring WNO Orchestra, soprano Camilla Roberts and Nathaniel Hall from Channel 4’s It’s a Sin. Released as part of the last rendition in the Three Letters project, this film aims to tackle societal stigma around HIV.