two different versions of the movie (spoilers)
I have seen two different versions of An American Werewolf in Paris. The first version was on television and the second version is on the R4 DVD.
The second version has an added scene in the church where Claude explains the history of werewolves to Andy. In the 13th century there were as many as 30,000 werewolves. Then the werewolves were nearly driven to extinction. But one survived, crossing the English channel where he lived for many years before being shot by simple farmers after attacking a traveler. The traveler survived but was eventually killed in London. His daughter was born in Paris. Andy the realizes that he's talking about Serafine.
In the first version Claude asks Andy to join his gang and Andy replies that it's a big decision and he needs time to think. Claude says "sure". This is where the scene ends in the first version. In the second version, the scene continues and Claude says "I give you ten seconds". Andy looks around nervously and says "Sure, why not. Sounds like fun".
The endings of the two versions are completely different.
In the first version, Serafine is in the ambulance and seems to be hallucinating that Andy is there with her. Then "Several Full Moons Later", Andy and Serafine are about to bungee jump off the Statue of Liberty on their wedding day. After the ring is accidentally dropped off the tower, Andy and Serafine bungee jump to catch it and this time Serafine saves Andy's life. This ending makes it clear that Serafine is still a werewolf.
In the second version, Serafine is in the ambulance and is preparing to pull out the tube that's keeping her alive. Her step-father appears and says "don't even think about". He then explains that he's invented a permanent cure, a serum that will last a lifetime. He's holding some papers that have instructions on how to make the serum. In both versions the ambulance guy says "My name is Bruno but I'm easy". Then "Several Full Moons Later" Andy comes to visit Serafine in the hospital. Serafine's baby is brought in and Andy screams when he sees the baby but then says he was just kidding. Then the baby opens its eyes and it has werewolf eyes.
This second ending I don't understand. Did Serafine's father really give her the cure or was she just hallucinating? Was he undead? How could he invent a cure if he was undead? How could he give those papers to Serafine if he was undead? How could he be undead if he died while in a coma and not directly after being mauled by a werewolf? Is Serafine still a werewolf?