In 2012, Lifshitz and Raphael Margules co-founded the production company BoulderLight Pictures, through which they became known for their horror and thriller work.[3] They have produced films such as Contracted (2013), Pledge (2018), The Vigil (2019), Barbarian (2022), and Woman of the Hour (2023).[4][5] BoulderLight signed a first-look feature film development deal with New Line Cinema in 2022,[6] and a first-look television development deal with A&E Studios in 2024.