What UK-produced film holds the title of being one of the most commercially successful franchises and highest-grossing films of all time?

The world of cinema is filled with blockbuster franchises, but when we think about UK-produced films that have achieved global commercial success on an unprecedented scale, one name stands out: Harry Potter. The Harry Potter film series, based on the beloved books by British author J.K. Rowling, captivated audiences worldwide. Filmed primarily in the UK, using British talent both in front of and behind the camera, these movies became a cultural phenomenon. While Spider-Man and Indiana Jones are massive franchises, they are primarily American productions. The Lord of the Rings, while filmed in New Zealand, has strong British ties through its author J.R.R. Tolkien, but it's not a UK production. The Harry Potter films, with their magical world rooted in British boarding schools and folklore, represent a significant achievement for the UK film industry, making them one of the most commercially successful and highest-grossing franchises ever.