I feel as if fiction where we're in a simulation is relatively common, but one where the hacking of reality is actually done well and plausibly rather than handwaved would be pretty new.
The author of Ra also did a short piece you'll probably enjoy: http://qntm.org/responsibility
All of them explore the nature of reality and consciousness in some way.
To the parent commenter, please write your story. The world always needs good fiction.
My confusion is a compliment to all three authors.
The difficulty is keeping track of the context while you attempt the exploit. You would have to be able to plant code outside the simulation without causing it to crash.
OTOH, from within, you'd only see a successful attempt to escalate privileges. Imagine being able to edit reality.
Good film.