About 33 minutes in, Joe Exotic and his group rent a helicopter to fly over the Big Cat Rescue location. A shot of a helicopter's shadow is shown on the ground as it lifts off, and a minute later an interior shot of an aircraft is shown, but it has nothing to do with the Big Cat Rescue helicopter. The shot shows the interior of a fixed-wing Cessna and is a video of an impending Tandem skydive with Joe Exotic. You can see the Tandem Master in a blue shirt with the Tandem rig on in the middle of the frame, and Joe sitting between his legs with the Tandem passenger harness on.
Low-flying helicopters do not cause seizures in animals, exotic or otherwise.
There is a shot of the interior of a single-engine Cessna fixed-wing aircraft shown, yet the sound you hear is that of a helicopter.