@Magic Marmalade
I'm a big fan of Rik Mayall and it was his attempt to break America. I think Phoebe Cates was a great choice, but as you say the script was too vulgar and mean to have a huge international appeal.
However, I saw it when I was about 10 years old and loved it then. I'm not doubting the acting is great from all involved and the plot hasn't really been done since. I can see the Tim Burton style, as well as Alice in Wonderland and Rik Mayall's own violent brand of slapstick.
I think where Rik Mayall failed to break America Simon Pegg succeeded. Both appeared in Guest House Paradiso which I found disappointing and they were both distributed by Vinegar Syndrome.
I think ultimately Rik Mayall was seen as a bit of an unlikely sex symbol and the best vehicle for him for international appeal might have been his Rik Mayall Presents series.
The title screen is a projection within the film hence the letterboxing and rare for a film of this age are about 12 minutes in. For anyone trying to see it is available on Amazon in some countries.