wont start on 1996 Pontiac Sunfire

parked car and it started rolling,the shifter says reverse and the lever moves loosely. it wont start and always says reverse no matter what gear youre in

Asked by for the 1996 Pontiac Sunfire
It sounds like something in your shifter mechanism broke. You need to tow it to a GM specialist or a transmission shop to get a diagnosis and estimate.
If you want to find a specialist, here's a directory link for you: