By Rachel Mcgrath For Dailymail.com
Published: 06:34 BST, 6 June 2019 | Updated: 08:38 BST, 6 June 2019
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The premiere for HBO's new documentary Ice On Fire was a family affair for Leonardo DiCaprio and his dad George.
The actor, 44, narrates and produces the movie which explores ways to reduce carbon emissions and slow down the effects of global warming and climate change.
His dad, 75, is listed as an executive producer on the project.
Both walked the red carpet ahead of the special screening held at the the LA County Museum of Art on Wednesday night.
It's the genes: The premiere for HBO's documentary Ice On Fire was a family affair for Leonardo DiCaprio and his dad George who both walked the red carpet ahead of the screening in LA
Ice On Fire is a follow-up to Leo's 2007 documentary about the environment The 11th Hour and, like that film, is directed by Leila Conners.
Since 1998, the Titanic star has worked to raise environmental awareness through his nonprofit Leonardo DiCaprio Foundation.
Through the foundation he donates millions of dollars to support environmental causes and organizations.
In 2014 he was appointed as a United Nations representative on climate change.
Raising awareness: The actor, 44, narrates and produces the movie which explores ways to reduce carbon emissions and slow down the effects of global warming and climate change