Proust is French, but lives and works in London. She told the crowd:
Thank you for adopting me, thank you for having a French one here. I’ve been here so many years and I feel adopted totally now by the UK, thank you.
The 35-year-old won the aware for her film Wantee, which takes the audience in search of her fictional grandfather.
You can watch her accepting the award here. She told presenter Lauren Laverne her baby would join in the celebrations.
We’ll go dancing. She loves it when it’s noisy.