A water-soluble film comprising: a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising a first anionic monomer unit comprising one or more vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing, the first PVOH copolymer having a first level of incorporation (a 1) of the first anionic monomer unit; and a second PVOH copolymer comprising a second anionic monomer unit comprising one or more vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing, the second PVOH copolymer having a second level of incorporation (a 2) of the second anionic monomer unit; wherein: the first PVOH copolymer is present in an amount in a range from 10 wt.% to 75 wt.% of total PVOH polymers and PVOH copolymers in the film, the second PVOH copolymer is present in an amount in a range of 25 wt.% to 90 wt.% of total PVOH polymers and PVOH copolymers in the film, a 1 - a 2 is greater than zero, and the first anionic monomer unit and the second anionic monomer unit are the same or different. a polyvinyl alcohol (PVOH) resin blend comprising: a first PVOH copolymer comprising a first anionic monomer unit comprising one or more vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing, the first PVOH copolymer having a first level of incorporation (a 1) of the first anionic monomer unit; and a second PVOH copolymer comprising a second anionic monomer unit comprising one or more vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing, the second PVOH copolymer having a second level of incorporation (a 2) of the second anionic monomer unit; a first PVOH copolymer comprising a first anionic monomer unit comprising one or more vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing, the first PVOH copolymer having a first level of incorporation (a 1) of the first anionic monomer unit; and a second PVOH copolymer comprising a second anionic monomer unit comprising one or more vinyl polymerization units corresponding to monocarboxylic acid vinyl monomers, their esters and anhydrides, dicarboxylic monomers having a polymerizable double bond, their esters and anhydrides, vinyl sulfonic acid monomers, and alkali metal salts of any of the foregoing, the second PVOH copolymer having a second level of incorporation (a 2) of the second anionic monomer unit; wherein: the first PVOH copolymer is present in an amount in a range from 10 wt.% to 75 wt.% of total PVOH polymers and PVOH copolymers in the film, the second PVOH copolymer is present in an amount in a range of 25 wt.% to 90 wt.% of total PVOH polymers and PVOH copolymers in the film, a 1 - a 2 is greater than zero, and the first anionic monomer unit and the second anionic monomer unit are the same or different. the first PVOH copolymer is present in an amount in a range from 10 wt.% to 75 wt.% of total PVOH polymers and PVOH copolymers in the film, the second PVOH copolymer is present in an amount in a range of 25 wt.% to 90 wt.% of total PVOH polymers and PVOH copolymers in the film, a 1 - a 2 is greater than zero, and the first anionic monomer unit and the second anionic monomer unit are the same or different.