A movie about Tilda Swinton and Michael Shannon raising their son George Mackay in an underground fortress after the end of the world sounds terrific, but reviews were sadly that it was dull and overlong. Also it's a musical without any real singers.

https://www.youtube.com/watch?si=e_r3H33Dk2kb24T1&v=avvm0e4oNCE&feature=youtu.be