Mission: Impossible - Rogue Nation (2015), "The Opera"
One of Mission: Impossible - Rogue Nation's most tense sequences unfolds during the opera Turandot in Vienna, with IMF agent Ethan Hunt (Tom Cruise) tracking undercover British agent Ilsa Faust (Rebecca Ferguson) and discovering that she, and others, intend to kill the chancellor of Austria during a performance in Vienna. The sequence crescendos into a dramatic fight above the stage between Hunt and another assassin, of which Turandot's players and audience are oblivious. So it's fitting that the movie audience is equally oblivious to just how much visual-effects intervention went into the making of the sequence.
VFX studio Double Negative filmed different aspects of the scene in different locations, then stitched them together. First Turandot was performed in its entirety in front of an audience. Double Negative also captured empty shots of the Vienna State Opera, and then filled 2,500 seats by replicating only 50 extras, who were moved around the auditorium performing different reaction moments in various lighting conditions.
Hunt's fight with the assassin was also recreated in various places, including a large stage in London that could house moving gantries. Some of these shots were filmed high in the air with a specially dressed opera background to match the opera house in Vienna. Even more angles and inserts came from another shoot at Leavesden Studios, near London, where the fighting was staged at ground level against a green screen. All that, and the visual-effects team also had to match the action to major music moments from the opera.