Among the first few stunt sequences that were shot for Mission:Impossible:  Fallout was an extreme stunt called the 'long-line'. It was shot in New Zealand and had Tom Cruise climbing up a rope dangling from a helicopter flying at 2,000 feet and then free-falling 40 feet onto a payload at the end of the rope and bouncing off of it.

According to Tom Cruise, the stunt was in the design and planning stages for two years. "It was one of the most extreme things we did in this movie, but you can't get this stuff on a green screen. It's technical. You have to figure out what the helicopter can hold, the payload, where you can put the cameras, what the angles can be. All the rigs have to check out, any little particle that comes off could be a problem.