PURPOSE: To obtain the title sheet or film which is transparent and has a high barrier property and a possibility of widening the applicable range of deep drawing, by using a specified vinylidene chloride/methyl acrylate copolymer resin and specifying its plasticizer content, transparency, heat shrinkage and thickness.

CONSTITUTION: A sheet or film which is a non-oriented sheet or film comprising a vinylidene chloride/methyl acrylate copolymer resin of a methyl methacrylate component content of 4W8wt%, wherein the liquid plasticizer remaining in this film layer is 4wt% or below, the transparency (HAZE value) is 10% or below, the heat shrinkage at 90°C≤5%, and the thickness is in the range of 10W100μ. This sheet or film has a high barrier property and a possibility of widening the applicable range of deep drawing, which has not been attained by conventional commercially available films. In addition it is markedly improved in workability in film formation and is very useful in industry as a non-oriented vinylidene chloride resin film for molding.