There is disclosed a method of manufacturing an in-mold labelled article, the method comprising the steps of: placing a label comprising a film having a core comprising polypropylene/polyethylene random copolymer as its principal polymeric constituent into a mold for injection molding, thermoforming, or blow molding; holding the label in position; injecting a polymeric melt into, or thermoforming or blowing a polymeric preform in said mold so as to bind with the label; and removing the article from the mold. A process of in-mold labelling using such a label is also disclosed.