India, May 20 -- The most expensive film that has ever been released cost just over $440 million to make. That was Star Wars Episode VII, a film that included hours of CGI and boasted some big names. But as things stand currently, a TV series in production dwarfs the film's scale. The world's most expensive TV series will cost over $4 billion to make. (Also read: Netflix's most expensive film cost more than Avatar, The Avengers; was rejected by studios, ended up a $320 million flop)

The reboot of the Harry Potter series is being touted as the most expensive TV show ever made. According to a report in Express, the show will have a production budget of £75 million per episode (over $100 million). With seven seasons of six episodes pla...