I saw this when I was far too young to have seen it and have had nightmares ever since. So, I’ve avoided it for a long time. But I am so glad now that I took the time to watch it.
Essentially, two Americans are travelling in the North of England, across the moors, when they are attacked by a werewolf. One, Jack (Griffin Dunne) is killed, the other, David (David Naughton) wakes up in a London hospital being treated by a sexy nurse, Alex (Jenny Agutter). But it just doesn’t go well… as it says in the title.
I got great the delight from spotting a very young Rik Mayall in early scenes, acting his young heart out. I thought it was a fantastic film – not so much of the horror, a lot more of the funny. The bit that I remember scaring me – the first time David changes – is still tormenting, but more because I get it now, the pain that he is going through. But my favourite but are all the moments with Jack – a dead man with excellent makeup who comes back to haunt David. Funny and ace.
An American Werewolf in London won an Oscar for Best Makeup.
ireckonthat 
An American Werewolf in London is, paws down, the best werewolf movie ever made.
Better than Teenwolf? That’s a big call, but I agree!