Jens Nygaard Knudsen was born on January 25, 1942 in Denmark. He was a writer, known for The Lego Batman Movie (2017), The Lego Movie (2014) and The Lego Batman Movie 2. He was married to Marianne and Marianne Knudsen. He died on February 19, 2020 in Anker Fjord Hospice, Hvide Sande, Jutland, Denmark.