The film structure has a first exterior layer having a high-density polyethylene and an inorganic particle, a second exterior layer having a polyethylene-based material for sealing, and an interior layer having a high-density polyethylene, a nucleating agent and a hydrocarbon resin. The film may be use as a heat-sealable lid component for packaging and offers high moisture barrier, good heat resistance, and push-through and/or child-resistance performance while maintaining an overall composition acceptable for recycling.