A monoaxially oriented film including an ethylene-propylene copolymer elastomer, a non-elastomeric propylene-based random copolymer, and a low density polyethylene, which is oriented at least about 2.5 times in one direction and exhibits excellent linear directional tear properties parallel to the orientation direction, excellent heat seal performance in terms of high heat seal strengths and low seal initiation temperature, and is less than 50 μm in thickness after orientation. This “thin” film formulation and orientation is suitable for pouch applications requiring an “easy-tear” linear tear feature and excellent hermetic seal properties.