Shrink films comprising a cyclic-olefin copolymer core

A multi-layered polyethylene film having:

• a dart drop of at least 7 g/um,
• a 1% TD secant flexural modulus of at least 280 to 460 MPa,
• a 1% MD secant flexural modulus of at least 280 to 460 MPa, and
• a TD shrink within a range from 20% to 36%,
• an MD shrink within a range from 55 to 90%;
• said film comprising at least a core layer and at least one other layer adjacent thereto, the core layer comprising within a range from 5 wt % to 50 wt % of a cyclic olefin copolymer based on the weight of the core layer, and within a range from 50 wt % to 95 wt % of a polyethylene based on the weight of the core layer,
• wherein:
• 1) the cyclic olefin copolymer has a glass transition temperature (Tg) of at least 80° C.,
• 2) the core layer is sandwiched between two polyethylene skin layers,
• 3) each skin layer independently comprises at least 50 wt % linear low density polyethylene and from 0.5 wt % to 20 wt % low density polyethylene by weight of each skin layer, and
• 4) the polyethylene of the core layer is:
• i) a linear low density polyethylene comprising from 0.5 to 20 wt % C4 to C12 α-olefin derived units by weight of the copolymer, the remainder of the copolymer comprising ethylene-derived units, ii) a low density polyethylene, or iii) a combination thereof.