In real life, it depends on what organs and what blood vessels are hit. If an artery is cut, you can bleed to death quickly (but not instantaneously). Usually, an untreated abdominal wound means a prolonged, painful death (keyword "untreated"). You may or may not be able to run away, depending on how severe the wound is, what was cut internally, your pain tolerance vs your adrenal levels, and how motivated you are to escape. People have gotten severe wounds that you would think would kill them, and they survive.
Generally, if it happens in the movies, it's not quite that way in real life.