Cast films, and articles made therefrom

A cast film comprising a polyethylene composition comprising a reaction product of ethylene and optionally one or more alpha-olefin comonomers, wherein said polyethylene composition is characterized by the following properties:

• a. a melt index, 12, measured according to ASTM D 1238 (2.16 kg, 190° C.), of from 1 to 20 g/10 min;
• b. a density (measured according to ASTM D792) of from 0.940 to 0.970 g/cm3;
• c. a melt flow ratio, I10/I2, wherein I10 is measured according to ASTM D1238 (10 kg, 190° C.) of from 5.5 to 7.0;
• d. a molecular weight distribution (Mw/Mn) of from 2.2 to 3.5;
• and
• e. a vinyl unsaturation of greater than 0.12 vinyls per one thousand carbon atoms present in a backbone of the polyethylene composition;
• and wherein the cast film further comprises a low density polyethylene having a melt index, I2 range of from 0.1 to 20 g/10 min.