These stunts are not so far-fetched. During my skydiving days one of my favorite jumps was exiting a biplane while inverted during a half-Cuban-8. Slowly drifting away while watching the pilot watching me, then seeing the biplane half-roll as he pulled out of the maneuver while the wind noise increased as I transitioned from parabola to freefall. It was as sublime and peaceful as pushing off the side of a swimming pool and drifting away.
Worth every penny of the $50.
My other favorite was bailing out of the back of a Boeing 727 (a la DB Cooper) during the 1999 World Freefall Convention (think Oshkosh for skydivers).
I’m not some skygod - these jumps were available to any reasonably competent skydivers.