Film franchises are big business in Hollywood, with the highest-grossing bringing in billions at the box office.

But have you ever wondered which film franchises top the list? We've rounded up the 21 highest-grossing of all time, from Marvel’s money-making superhero sagas to beloved family-friendly series. Read on to see what made the cut – some entries may even surprise you!

All dollar amounts are in US dollars, and the total values of the franchises have been adjusted for inflation.