Born and raised in Mexico City, Alfredo Alcántara Marentes is a Brooklyn-based documentary filmmaker and cinematographer. Along with his sister, Isabel Alcántara, he co-founded Ponderosa Productions. His camerawork is featured in the award-winning documentary American Promise (Sundance Film Festival, Jury Award 2013). In 2014, he produced and co-directed Duke and the Buffalo (Mountainfilm 2014). That same year, he shot and directed El Porvenir, a short documentary that premiered at SXSW in 2015. His work also includes Ranchlands, a digital series for the History Channel about conservation ranching in Colorado, and Vaquita (Mountainfilm 2018).