Film comprising at least one sealing layer wherein at least one layer A of the sealing layer(s) comprises a polyethylene comprising moieties derived from ethylene and moieties derived from an α-olefin comprising 4 to 10 carbon atoms, the polyethylene having a density of ≥ 870 and ≤ 920 kg/m 3, preferably of ≥ 900 and ≤ 920 kg/m 3, as determined in accordance with ASTM D792, wherein the polyethylene has: • a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤ 30.0°C of ≥ 5.0 wt%, preferably ≥ 10.0 wt%, or ≥ 7.5 wt% and ≤ 20.0 wt%, with regard to the total weight of the polyethylene, wherein a-TREF is measured as specified in the description; • a shear storage modulus G' determined at a shear loss modulus G" = 5000 Pa of > 1000 Pa, G' and G" being determined in accordance with ISO 6721-10 at 190°C; and • a chemical composition distribution broadness (CCDB) of ≥ 15.0 and ≤ 30.0, preferably ≥ 20.0 and ≤ 30.0 wherein the CCDB is determined according to formula I: CCDB = T z + 2 − T n − 2 T n − 2 ∗ 100 wherein • T n-2 is the moment calculated according to the formula II: T n − 2 = ∑ w i T i 2 ∑ w i T i 3 and • T z+2 is the moment calculated according to the formula III: T z + 2 = ∑ w i ⋅ T i 4 ∑ w i ⋅ T i 3 wherein • w(i) is the sampled weight fraction in wt% with regard to the total sample weight in a-TREF analysis of a sample (i) taken at temperature T(i), where T(i) > 30°C, the area under the a-TREF curve being normalised to surface area = 1 for T(i) > 30°C; and • T(i) is the temperature at which sample (i) is taken in a-TREF analysis, in °C; wherein the layer A comprises > 50.0 wt% of the polyethylene, with regard to the total weight of the layer A. wherein the polyethylene has: • a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤ 30.0°C of ≥ 5.0 wt%, preferably ≥ 10.0 wt%, or ≥ 7.5 wt% and ≤ 20.0 wt%, with regard to the total weight of the polyethylene, wherein a-TREF is measured as specified in the description; • a shear storage modulus G' determined at a shear loss modulus G" = 5000 Pa of > 1000 Pa, G' and G" being determined in accordance with ISO 6721-10 at 190°C; and • a chemical composition distribution broadness (CCDB) of ≥ 15.0 and ≤ 30.0, preferably ≥ 20.0 and ≤ 30.0 wherein the CCDB is determined according to formula I: CCDB = T z + 2 − T n − 2 T n − 2 ∗ 100 wherein • T n-2 is the moment calculated according to the formula II: T n − 2 = ∑ w i T i 2 ∑ w i T i 3 and • T z+2 is the moment calculated according to the formula III: T z + 2 = ∑ w i ⋅ T i 4 ∑ w i ⋅ T i 3 • a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤ 30.0°C of ≥ 5.0 wt%, preferably ≥ 10.0 wt%, or ≥ 7.5 wt% and ≤ 20.0 wt%, with regard to the total weight of the polyethylene, wherein a-TREF is measured as specified in the description; • a shear storage modulus G' determined at a shear loss modulus G" = 5000 Pa of > 1000 Pa, G' and G" being determined in accordance with ISO 6721-10 at 190°C; and • a chemical composition distribution broadness (CCDB) of ≥ 15.0 and ≤ 30.0, preferably ≥ 20.0 and ≤ 30.0 wherein the CCDB is determined according to formula I: CCDB = T z + 2 − T n − 2 T n − 2 ∗ 100 wherein • T n-2 is the moment calculated according to the formula II: T n − 2 = ∑ w i T i 2 ∑ w i T i 3 and • T z+2 is the moment calculated according to the formula III: T z + 2 = ∑ w i ⋅ T i 4 ∑ w i ⋅ T i 3 • T n-2 is the moment calculated according to the formula II: T n − 2 = ∑ w i T i 2 ∑ w i T i 3 and • T z+2 is the moment calculated according to the formula III: T z + 2 = ∑ w i ⋅ T i 4 ∑ w i ⋅ T i 3 wherein • w(i) is the sampled weight fraction in wt% with regard to the total sample weight in a-TREF analysis of a sample (i) taken at temperature T(i), where T(i) > 30°C, the area under the a-TREF curve being normalised to surface area = 1 for T(i) > 30°C; and • T(i) is the temperature at which sample (i) is taken in a-TREF analysis, in °C; • w(i) is the sampled weight fraction in wt% with regard to the total sample weight in a-TREF analysis of a sample (i) taken at temperature T(i), where T(i) > 30°C, the area under the a-TREF curve being normalised to surface area = 1 for T(i) > 30°C; and • T(i) is the temperature at which sample (i) is taken in a-TREF analysis, in °C; wherein the layer A comprises > 50.0 wt% of the polyethylene, with regard to the total weight of the layer A.