Hand tearable sheets and method for manufacturing same

An article comprising a principal film, wherein:

• (a) the principal film comprises a first polymeric component comprising one or more polymers;
• and
• (b) the principal film has:
• (1) first and second major faces;
• (2) a land portion wherein the principal film is capable of thermally-induced elastic recovery;
• and (3) one or more modification zones, each modification zone comprising a central portion and a rim portion surrounding the central portion and being surrounded by land portion, wherein the average thickness of each rim portion is greater than the average thickness of the land portion surrounding the modification zone, the average thickness of each central portion is less than the average thickness of the land portion surrounding the modification zone and is greater than zero, and wherein one or more segments of the principal film have a tear strength of about 100 gf/mil-thickness or less.