Cambio de sentido
- Blwyddyn: 2009
- Gwlad: Spain, Mexico
- Genre: Documentary
- Stiwdio: 14 Pies, Altamira, Pluto Entertainment, 91 Films, TVE
- Allweddair: pollution, addiction, transportation, automobile industry, educational, traffic
- Cyfarwyddwr: Vicente Pérez, Sergio García de Leaniz
- Cast: Guillermo Fesser