Erek was responsible for the sound and music direction for Kaan Müjdeci's feature-length film “Sivas” (71st Venice Film Festival - Special Jury Prize, 2014), and music and sound co-design (with Cenker Kökten) for Emin Alper's feature-length film “Abluka / Frenzy” (72nd Venice Film Festival - Special Jury Prize, 2015).