Help Please 2003 Sable won't move

I was driving down the road today and stoped at a light. The light changed and my car wouldn't move, foward or backward. It's a automatic and the handle moves just fine but the car does nothing. A friend checked the fuses. It didn't make any noise so it can't be bad broke can it? One minute ok, the next won't go in gear.
Any thought?
Thanks

Transmission failure? Axle broken?

it might be too late but replace the transmision filter