Jon Petter Ekstrand is a Swedish composer and film sound designer who is known to constantly work with director Daniel Espinosa on his movies. He has worked as music composer for movies like Leo (2007), Easy Money (2010) and Child 44 (2015). Espinosa directed Easy Money and Child 44. Ekstrand collaborates with him again for the sci-fi/thriller Life (2017). The movie has Jake Gyllenhaal, Rebecca Ferguson and Ryan Reynolds in the lead.