Sophie Nyweide, a former child actor whose brief career included roles in the films 'Mammoth,' 'Noah' and 'Bella,' has died. She was 24.

Former child actor Sophie Nyweide was pregnant at the time of her death earlier this month, according to a copy of her death certificate obtained by NBC News on April 24. Nyweide, known for her roles in “Mammoth” and “Margot at the Wedding,” was found dead at age 24 in a wooded area near Bennington, Vermont, on April 14, her death certificate said.

Former child star Sophie Nyweide, best known for her roles in the films "Mammoth" and "An Invisible Sign," died on April 14.