It sounds like you’re referencing a specific file naming convention for an version of American Psycho (2000). The "Open Matte" presentation is already an interesting feature in itself, but I can suggest a unique or under-discussed aspect you might find fascinating:
For those interested in watching "American Psycho," the film is available for streaming on various platforms, including Amazon Prime Video and HBO Max. The film is also available for download in various formats, including 1080p BluRay. American.Psycho.2000.Open.Matte.1080p.BluRay.HE...