When the plane with Gilberto Rodriguez en Javier Pena takes off, the left wing (as seen from the pilot) shows the callsign of the plane: EC-INC. The prefix EC is assigned to Spain; a Colombian plane would have a callsign starting with either 5J or 5K.
When they first pull Gilberto out of the hole, he is wearing a yellow shirt. When they change shots, he's now wearing a striped white shirt with a tan jacket.