The real footage in this video was captured by several cameras that are part of the rover's entry, descent, and landing suite.
The views include a camera looking down from the spacecraft's descent stage (a kind of rocket-powered jet pack that helps fly the rover to its landing site), a camera on the rover looking up at the descent stage, a camera on the top of the aeroshell (a capsule protecting the rover) looking up at that parachute, and a camera on the bottom of the rover looking down at the Martian surface.
The audio embedded in the video comes from the mission control call-outs during entry, descent, and landing.
For more information about Perseverance, visit
https://mars.nasa.gov/mars2020/
Credit: NASA/JPL-Caltech