Heat-shrinkable monolayer and multilayer films are disclosed. The films are formed of a blend of a polyethylene copolymer having a CDBI of at least 70%, a melt index I.sub.2.16 of from 0.1 to 15 g/10 min., a density of from 0.910 to 0.940 g/cm.sup.3, a melt index ratio I.sub.21.6/I.sub.2.16 of from 30 to 80, and an Mw/Mn ratio of from 2.5 to 5.5, and a second polymer, such as a low density polyethylene (LDPE). The heat-shrinkable films have a combination of improved optical and mechanical properties.