Complex sentence: In 2010 the brand launched BBC Earth Films, the theatric arm of BBC Earth announcing three films in production One Life (2011), Walking with Dinosaurs 3D (2013) and Enchanted Kingdom 3D (2014).
Split into simpler sentences: In 2010 the brand launched BBC Earth Films, the theatrical arm of BBC Earth. Three new productions were announced at the launch: "One Life" (2011), "Walking with Dinosaurs 3D" (2013) and "Enchanted Kingdom 3D" (2014).