TECHNOLOGY FOCUS - POLYMERS - Preferred Structure: In the multilayer film structure, the (i) EP in Layer B comprises at least 80 mol% polymerized ethylene and the balance is polymerized propylene. The block composite resin in Layer B is a crystalline block composite resin. The Layer B block composite resin has a CAOB amount (in part (iii)) in the range of 30-70 wt.% of the CAOB. The Layer B block composite resin has a CAOB amount (in part (iii)) in the range of 40-60 wt.% of the CAOB. The tie Layer B comprises a CBC having a CBCI of between 0.3 to 1.0 or a specified BC having a BCI of between 0.1 to 1.0. The propylene is the alpha-olefin in (ii) and (iii) in tie Layer B. The tie Layer B is a blend comprising greater than 40 wt.% CBC or specified BC. The tie Layer B is a blend further comprising one or more polyolefin selected from an ethylene octene plastomer, linear low-density polyethylene (LLDPE) and low-density polyethylene (LDPE). The CBC or specified BC of Layer B has a melt flow rate of 3-15 g/10 minute (at 230 degrees C/2.16 kg). The multilayer film structure comprises: (A) a seal layer A having a top facial surface and a bottom facial surface, the bottom facial surface in adhering contact with the top facial surface of layer B. The top layer A comprises the LLDPE, and a blend formulation of the LLDPE comprising a polar ethylene copolymer in an amount of 10-45 wt.%. The top layer A comprises a BC or CBC and the layer composition is different from layer B composition. The bottom layer C comprises a propylene-based polymer, a propylene-based polymer having a heat of fusion value of at least 60 Joules per gram (J/g). The Layer A is 0-200 mu m in thickness; Layer B is 25-100 mu m in thickness; and Layer C is 150-350 mu m in thickness. Furthermore, the multilayer film structure comprises a top seal Layer A comprising the blend formulation of the LLDPE comprising a polar ethylene copolymer in an amount of 10-45 wt.%, a bottom Layer C comprising a propylene-based polymer and a Layer B between Layer A and Layer C comprising a crystalline block copolymer composite (CBC): comprising (i) an ethylene polymer (EP) comprising at least 93 mol% polymerized ethylene; (ii) a crystalline propylene polymer; and (iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 93 mol% polymerized ethylene, and (b) a crystalline propylene polymer block. EXAMPLE - No suitable example given.