The invention of the "Scottish Filter" allowed Boyle to shoot love scenes with his countrymen, whose skin tones made the operation impossible with earlier technology.
In a recent interview on Kurt Loder's MTV show, I Can't Believe I'm Still Alive, Danny Boyle says it might be a while before we see a movie version of Porno, Irvine Welsh's sequel to Trainspotting. The main reason being that the cast of the original don't look old enough yet.
We won’t be able to do it for a while because the guys don’t look any different. They haven’t aged at all! They give this impression to the public that they’re out drinking and smoking, when in fact they are in a spa somewhere in the country!
Danny Boyle must shout a lot! Or maybe the writer just had too much coffee! Anyway, don't fret, fans - Kevin Smith's already making a Porno movie. Except in Smith's version, the nihilistic Scottish drug addicts will be replaced by neurotic Jersey douchebags who argue about Star Wars in stilted dialogue.