Modern video players like VLC or MX Player allow you to load the original Norwegian subtitle file (which is much easier to find) and use built-in plugins to auto-translate the text into English in real-time.
: File → Load Subtitle
If you are tracking down this rare gem, your best bet is either ordering an archival disc containing the English translation or marrying a community-sourced .srt file to an available digital rip via VLC. mors hus1974 english subtitle