Bent Pressure Plate, how many miles is on it?

it COULD be a slave cylinder problem, but most of the time, thats a bent PP.

do this, put the clutch in, put it in gear, KEEP THE CLUTCH PUT IN, an rev it up to like 5-6000rpms, does the car move forward? if so, its the Pressure Plate , its warped or the disk has flexxed an its not disengaging