Here are some popular anti-smoking adverts from the UK (from when I was a teenager!):
https://www.youtube.com/watch?v=DcJy5m36n4o - Here are the lyrics to the song:
What do you say boy, Fancy getting jiggy?
Say what �s the problem boy, The smell of my ciggy?
I watch you there boy, I want to hold you close.
Is it my breath, Or my hair and stinky clothes?
You disappear right out of sight, When I say, have you got a light?
Why do you keep on running boy?
Can �t run so fast, got a pain in my chest. Oh, Why do you keep on running boy?
I wish you �d stop, cause I �m so out of breath.
They aren �t really information films but they might be a good way to get the pupils thinking about the topic.