Human Traffic is not really much like Trainspotting except that both are good movies, pretty funny and about drugs. But Trainspotting has its dark side (smack, withdrawal, squalor, violence, mistrust, death) whereas Human Traffic is a warmhearted movie about ecstasy, clubbin, fun, friendship, love - the first film made by and for the chemical generation. And if you haven't seen it, make sure you do because you'll love it!
Modulations is pretty good (excellent soundtrack) but it's really a documentary about the history of modern dance music in all its forms that's led up to today's rave scene y'all know and luv. Obviously, ecstasy's in there, but it's more about turntables and samplers than mdma. Quite interesting and informative though - worth a look.
And here's one that's not about ecstasy but it has some primitive x-like effects in it. Appropriately enough it's called 'X - The Man With X-Ray Eyes' starring Ray Milland as a doctor who invents an eye drop solution that gives him x-ray vision. It's a classy B movie made in the 50's or 60's but the sfx always remind me of e-visuals! Top trash!