A process for rendering films, film composites, and articles made therefrom less resistant to passage of water vapor by passing a filled precursor film (10) or film composite through the nip of interdigitating grooved rollers (24, 25). The films (10) or film composites are generally formed using a precursor film (10) of a film forming polyolefin or polyolefin blend, with a relatively high filler loading and optionally an elastomer. A process is disclosed for making diapers or other disposable items where a relatively high water vapor is coupled with a resistance to liquid strikethrough. In one embodiment of the invention, the interdigitating grooved rollers (24, 25) are maintained in a temperature range of from about 91 DEG F to about 159 DEG F.