An easily tearable film comprising polyamide resin components comprising more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B, with the proviso that a sum of the semi-aromatic polyamide resin A and the aliphatic polyamide resin B is 100 parts by mass; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol% or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol% or more of the dicarboxylic acid-derived constituent units are derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; characterized in that the semi-aromatic polyamide resin A satisfies Equation below; and the easily tearable film is stretched; molar concentration of phosphorus atoms × n − total molar concentration of alkali metal atoms × 1 + total molar concentration of alkaline earth metal atoms × 2 / Mn ≤ 60 where the molar concentration of phosphorus atoms means molar concentration of phosphorus atoms of a phosphoric acid-related compound contained in the semi-aromatic polyamide resin A; the total molar concentration of the alkali metal atom and the total molar concentration of the alkaline earth metal atom mean respectively a total molar concentration of alkali metal atoms or a total molar concentration of alkaline earth metal atoms contained in the semi-aromatic polyamide resin A, both in μmol/g; the phosphoric acid-related compound is selected from phosphoric acid and salts thereof, phosphorous acid and salts thereof, and hypophosphorous acid and salts thereof; n means the number of releasable protons of the phosphoric acid-related compound; and Mn means a number average molecular weight of the semi-aromatic polyamide resin A in g/μmol. 60 mol% or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol% or more of the dicarboxylic acid-derived constituent units are derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; characterized in that the semi-aromatic polyamide resin A satisfies Equation below; and the easily tearable film is stretched; molar concentration of phosphorus atoms × n − total molar concentration of alkali metal atoms × 1 + total molar concentration of alkaline earth metal atoms × 2 / Mn ≤ 60 where the molar concentration of phosphorus atoms means molar concentration of phosphorus atoms of a phosphoric acid-related compound contained in the semi-aromatic polyamide resin A; the total molar concentration of the alkali metal atom and the total molar concentration of the alkaline earth metal atom mean respectively a total molar concentration of alkali metal atoms or a total molar concentration of alkaline earth metal atoms contained in the semi-aromatic polyamide resin A, both in μmol/g; the phosphoric acid-related compound is selected from phosphoric acid and salts thereof, phosphorous acid and salts thereof, and hypophosphorous acid and salts thereof; n means the number of releasable protons of the phosphoric acid-related compound; and Mn means a number average molecular weight of the semi-aromatic polyamide resin A in g/μmol.