A method of evaluating a water penetration distance of a film, comprising measuring a haze of a film including a base resin, a curing agent and a moisture absorbent within one hour from a time point at which the film is taken out of a water-resistant sealed envelope under conditions of a relative humidity of 50% at 25 °C and evaluating a water penetration distance of the film using the measured haze value, wherein the water penetration distance of the film is evaluated as being longer when the measured haze value of the film decreases, wherein the haze value of the film is 30% or more, wherein the haze value satisfies the following General Equation 1. Hz = − m e − φ hr n g / n − 1 2 where, in General Equation 1, Hz represents a haze value (%) of the film that is measured using a haze meter within one hour from a time point at which the film is taken out of the water-resistant sealed envelope under conditions of a relative humidity of 50% at 25 °C, m represents a value greater than 0, Φ represents a content of the moisture absorbent with respect to the base resin, h represents a thickness of the film, r represents an average particle diameter of the moisture absorbent, n g represents a refractive index of the moisture absorbent, and n represents a refractive index of the base resin, and wherein the film satisfies the following General Equation 2: D = k / Hz where, in General Equation 2, Hz represents a haze value (%) of the film that is measured using a haze meter within one hour from a time point at which the film is taken out of the water-resistant sealed envelope under conditions of a relative humidity of 50% at 25 °C, D represents a water penetration distance (mm) of the film that is measured after the film of which a haze is measured is laminated between two glass substrates and maintained under conditions of a temperature of 85 °C and a relative humidity of 85% for 0 to 1500 hours, and k is a value equal to or greater than one, wherein the base resin comprises a thermoplastic resin, elastomer or a curable resin, wherein the moisture absorbent comprises an water reactive adsorbent comprising a metal powder such as alumina, a metal oxide, a metal salt, phosphorus pentoxide (P 2 O 5) or a mixture thereof; or an physical adsorbent comprising silica, zeolite, titania, zirconia, montmorillonite, wherein the curing agent is comprised in an amount of 1 part by weight to 20 parts by weight with respect to 100 parts by weight of the base resin. measuring a haze of a film including a base resin, a curing agent and a moisture absorbent within one hour from a time point at which the film is taken out of a water-resistant sealed envelope under conditions of a relative humidity of 50% at 25 °C and evaluating a water penetration distance of the film using the measured haze value, wherein the water penetration distance of the film is evaluated as being longer when the measured haze value of the film decreases, wherein the haze value of the film is 30% or more, wherein the haze value satisfies the following General Equation 1. Hz = − m e − φ hr n g / n − 1 2 where, in General Equation 1, Hz represents a haze value (%) of the film that is measured using a haze meter within one hour from a time point at which the film is taken out of the water-resistant sealed envelope under conditions of a relative humidity of 50% at 25 °C, m represents a value greater than 0, Φ represents a content of the moisture absorbent with respect to the base resin, h represents a thickness of the film, r represents an average particle diameter of the moisture absorbent, n g represents a refractive index of the moisture absorbent, and n represents a refractive index of the base resin, and wherein the film satisfies the following General Equation 2: D = k / Hz where, in General Equation 2, Hz represents a haze value (%) of the film that is measured using a haze meter within one hour from a time point at which the film is taken out of the water-resistant sealed envelope under conditions of a relative humidity of 50% at 25 °C, D represents a water penetration distance (mm) of the film that is measured after the film of which a haze is measured is laminated between two glass substrates and maintained under conditions of a temperature of 85 °C and a relative humidity of 85% for 0 to 1500 hours, and k is a value equal to or greater than one, wherein the base resin comprises a thermoplastic resin, elastomer or a curable resin, wherein the moisture absorbent comprises an water reactive adsorbent comprising a metal powder such as alumina, a metal oxide, a metal salt, phosphorus pentoxide (P 2 O 5) or a mixture thereof; or an physical adsorbent comprising silica, zeolite, titania, zirconia, montmorillonite, wherein the curing agent is comprised in an amount of 1 part by weight to 20 parts by weight with respect to 100 parts by weight of the base resin.