December 13, 2011 01:00 PM

WireImage

Serious sweetie!

Laura Dern poses with son Ellery Walker, 11, at Sunday’s CNN Heroes: An All-Star Tribute, held at The Shrine Auditorium in Los Angeles.

The actress, 44, presented an award to Derreck Kayongo of Global Soap Project at the event.

Dern and estranged husband Ben Harper are also parents to daughter Jaya, 7.

RELATED: The Dern-Harpers: Happy on Hollywood Blvd.

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