Factual error: In Sintra, when Depp and the girl go to Fargas' house in the morning, they ride the motorbike and turn left. However, from Hotel Central to this house you must turn right, it's the road that climbs to the manors, the other way you'll get to Central Village.
Factual error: Depp descends from the long-journey train (you can see it's the same train) from Toledo in Sintra. However, no long-journey trains stop in this station, just suburban trains: a direct travel Toledo-Sintra is impossible.
Answer: Lucifer was also known as the morning star. Depending on your view he passed the trial and was granted entrance through the ninth gate.