A metallized multi-layer film having ultra-high oxygen and moisture barrier properties includes a core layer and a metal bonding layer preferably formed by coextruding. The metal bonding layer includes a preponderance, by weight, of a propylene/butene-1 copolymer free of particulates. A metal coating adhered to the metal bonding layer having a metal adhesion strength to the metal coating in excess of 90%, and the metallized film includes an oxygen barrier of less than 15.0 cc/m2/day and a water barrier of less than 0.1 gms/m2/day.