The Letter: A Message for our Earth is a 2022 documentary film presented by YouTube Originals, telling the story of the Laudato Si' encyclical by Pope Francis.

The film was produced by Oscar-winning Off The Fence Productions and directed by Nicolas Brown, in partnership with the Laudato Si' Movement.

Its global premiere happened in Vatican City on 4 October 2022. High-level speakers such as Hoesung Lee, Director of the Intergovernmental Panel on Climate Change, and Cardinal Michael Czerny, Prefect of the Dicastery for Integral Human Development, spoke in the premiere's press conference.

The film was an instant success amassing over 7 million views in its first two weeks, with the support of celebrities such as Leonardo DiCaprio and Arnold Schwarzenegger who promoted it on their social media accounts.