A film including, in at least a part thereof, a layer comprising an ethylene-based resin which is a copolymer of ethylene and an α-olefin of 4 to 10 carbon atoms and satisfies the following requirements to at the same time or an ethylene-based resin composition (R') containing the resin; the melt flow rate at 190°C under a load of 2.16 kg is in the range of 0.1 to 50 g/10 min, the density (d) is in the range of 875 to 970 kg/m 3, the density being measured as set out in the description, the ratio [MT/η*(g/P)] of a melt tension [MT(g)] at 190°C to a shear viscosity [η*] at 200°C and at an angular velocity of 1.0 rad/sec is in the range of 1.00×10 -4 to 9.00×10 -4, the melt tension and shear viscosity being measured as set out in the description, the sum [(M+E)(/1000C)] of the number of methyl branches [M(/1000C)] and the number of ethyl branches [E(/1000C)] as measured by 13 C-NMR, each number being based on 1000 carbon atoms, is not more than 1.8, the zero shear viscosity [η 0] at 200°C and the weight-average molecular weight (Mw) as measured by a GPC-viscosity detector method (GPC-VISCO) satisfy the following relational formula (Eq-1): 0.01 × 10 − 13 × Mw 3.4 ≤ η 0 ≤ 4.5 × 10 − 13 × Mw 3.4 the zero shear viscosity and weight-average molecular weight being measured as set out in the description, and the intrinsic viscosity ([η] (dl/g)) as measured in decalin at 135°C and the weight-average molecular weight Mw as measured by the GPC-viscosity detector method (GPC-VISCO)of the ethylene-based resin satisfy the following relational formula (Eq-7): 0.8 × 10 − 4 × Mw 0.776 ≤ η ≤ 1.65 × 10 − 4 × Mw 0.776 the intrinsic viscosity and weight average molecular weight being measured as set out in the description, wherein on one surface of the layer comprising the ethylene-based resin or the resin composition (R') is laminated an ethylene-based resin that is different from the ethylene-based resin or the resin composition (R'). the melt flow rate at 190°C under a load of 2.16 kg is in the range of 0.1 to 50 g/10 min, the density (d) is in the range of 875 to 970 kg/m 3, the density being measured as set out in the description, the ratio [MT/η*(g/P)] of a melt tension [MT(g)] at 190°C to a shear viscosity [η*] at 200°C and at an angular velocity of 1.0 rad/sec is in the range of 1.00×10 -4 to 9.00×10 -4, the melt tension and shear viscosity being measured as set out in the description, the sum [(M+E)(/1000C)] of the number of methyl branches [M(/1000C)] and the number of ethyl branches [E(/1000C)] as measured by 13 C-NMR, each number being based on 1000 carbon atoms, is not more than 1.8, the zero shear viscosity [η 0] at 200°C and the weight-average molecular weight (Mw) as measured by a GPC-viscosity detector method (GPC-VISCO) satisfy the following relational formula (Eq-1): 0.01 × 10 − 13 × Mw 3.4 ≤ η 0 ≤ 4.5 × 10 − 13 × Mw 3.4 the zero shear viscosity and weight-average molecular weight being measured as set out in the description, and the intrinsic viscosity ([η] (dl/g)) as measured in decalin at 135°C and the weight-average molecular weight Mw as measured by the GPC-viscosity detector method (GPC-VISCO)of the ethylene-based resin satisfy the following relational formula (Eq-7): 0.8 × 10 − 4 × Mw 0.776 ≤ η ≤ 1.65 × 10 − 4 × Mw 0.776 the intrinsic viscosity and weight average molecular weight being measured as set out in the description, wherein on one surface of the layer comprising the ethylene-based resin or the resin composition (R') is laminated an ethylene-based resin that is different from the ethylene-based resin or the resin composition (R'). the intrinsic viscosity and weight average molecular weight being measured as set out in the description, wherein on one surface of the layer comprising the ethylene-based resin or the resin composition (R') is laminated an ethylene-based resin that is different from the ethylene-based resin or the resin composition (R').