Yeah, there is a spring that holds the handle shut, you may also notice your interior lights going on and off and the window possibly dropping and raising when the handle wiggles.
Here is a thread with some details and link to other threads with a solution. It happened to me so that's how I know
http://986forum.com/forums/boxster-general-discussions/59577-something-inside-door-snapped-when-i-opening-door-inside-today.html