“I said no to the last one and then ended up doing it, and was pilloried by all my friends,” the director Sam Mendes told BBC Radio, about his future (or not) with Agent 007. “But I do think this is probably it.” Spectre, which comes out this fall, and 2012’s Skyfall took a total of five years to make.

“It feels almost, even though we’ve just finished shooting it, like one big experience and it was a fantastic life-changing thing,” he said. “It really is more a lifestyle choice than a job,” he said.  “I don’t think I could go down that road again.”

The theme song has been recorded but Mendes wasn’t ready to reveal who recorded it. “It’s fantastic and I’m very excited about it,” he said. “You won’t have to wait long.”

Mendes, who won an Oscar for directing American Beauty, rose to fame in theater, and did manage to direct a new stage production of Roald Dahl’s Charlie and the Chocolate Factory, a Cabaret revival and King Lear between the Bond pictures. 

Spectre was filmed in London, Mexico, Italy and Morocco with a cast and crew totalling more than 1,000 people, Mendes said. “And you really do feel it. This is a bigger movie than Skyfall. It’s been an enormous undertaking.”

Spectre, in which Daniel Craig turns in his fourth performance as agent 007, also stars Christoph Waltz, Lea Seydoux, Andrew Scott, Naomie Harris, Ben Whishaw, Dave Bautista, Monica Bellucci and Ralph Fiennes. The movie’s world premiere is set for October 26 in London. It bows November 6 in the U.S.