The Conjuring 2, starring Patrick Wilson and Vera Farmiga, opened in U.S. cinemas last week (ends12Jun16), but the team behind the sequel to The Conjuring are already brewing up plans for a new franchise.

Director James Wan, screenwriter David Leslie Johnson and producer Peter Safran are re-teaming for The Nun, which will centre on the demonic habit-wearing character who serves as the antagonist in The Conjuring 2.

Ironically, the nun was a last-minute addition to the film after Wan came up with the idea to replace the previously planned horned demon just three months before the movie was to be released.

Re-shoots took place in March (16) and additional digital alterations were added to the film for continuity.

The Nun will be the second spin-off from The Conjuring franchise - 2014's Annabelle earned over $256 million (£180 million) worldwide and a sequel is planned for 2017.

The Conjuring 2 has already proved to be a success after debuting at number one on the North American box office with $40.4 million (£28.3 million). Globally, it has already grossed over $100 million (£70 million) worldwide in five days of release, and was the biggest opening weekend ever for a horror film across 30 markets around the world.