Max of 2 lines per screen with a maximum of 37–47 characters per line.
If you are writing the actual subtitles for the film's dialogue, follow these industry standards from sources like LanguageWire and TED : subtitle Saw III
Use brackets or names for off-screen speakers (e.g., [JIGSAW ON TAPE]: Hello, Jeff. ). Max of 2 lines per screen with a
A "write-up" for a subtitle often refers to the brief blurb used in streaming menus. According to IMDb , the proper summary for Saw III is: [JIGSAW ON TAPE]: Hello