Corrected entry: As Ren is dancing through the factory we see him take off his sweater and dump it on the ground. Later once he comes across Ariel back at his car we see him go and pick up his sweater from a nearby train carriage which is not near where he left it.
Scrappy
7th Aug 2006
Correction: The dancing scene in the warehouse is a montage of the entire time he was there, thus giving him, or even Ariel, who was watching him, time to move it somewhere else.
Jazetopher