Jazz Tangcay Artisans Editor It took over 555 musicians with sessions around Europe — including in Rome, Vienna, Venice, Switzerland and London — to put together the score for “Mission: Impossible – Dead Reckoning Part One,” composer Lorne Balfe tells Variety. The composer started writing the music almost three years ago, and “at last count, there was over 14 hours of music recorded,” Balfe says. However, only two-and-a-half hours or so made it into the final cut of the film. The storyline sees Tom Cruise’s Ethan Hunt take on a new villain, The Entity, a sentient Artificial Intelligence. Ethan’s mission is to defeat The Entity with a metal key. And while the film features an array of mind-blowing stunts, including Ethan driving a motorcycle off a cliff or a climatic fight atop a moving steam engine train, there was also plenty of emotion for Balfe to root his score in.