Good work Carlo. I interviewed Kylie about three weeks ago, she's an awesome gal!
Here's part 1:
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Those of you who have seen Kylie Furneaux in action, more than  likely, have not even noticed. She has fought, fallen and sliced her way  through many action and comic book projects as a stunt actor and stunt  double. Though her latest role doubling as Jaimie Alexander's Lady Sif  character in Marvel Studios Thor has helped bring her to the  attention of comic fans, her experience  working in comic book related films and TV series  is extensive. Kylie was kind enough to take a break from her relentless  schedule of training, filming and choreographing to speak with me about  the globe-trotting experiences that has given her one of the most  respectable resumes in the stunt industry. If you're not familiar with  how important stunt acting is, pay attention; Kylie also gives us a  break down of how stunt work fits into the the grand scheme of modern  film making. 
Pietro Filipponi: The majority of our audience may not be  familiar with the importance of the stunt industry in Hollywood,  especially with so many actors and actresses saying that they do their  own stunt work. How would you best describe the role the average stunt  person has on set in various scenarios such as body doubling and stunt  acting? 
Kylie Furneaux:  Pretty much anytime an actor has anything that  may in any way result in them getting physically damaged in some way  they generally have a stunt coordinator and a stunt double on set. If it  is something easy like simply getting slapped across the face, it may  just be the coordinator who is present to assist the director in making  sure the shot looks as genuine as possible. If the slap results in the  actor falling backwards over a chair, then the stunt double steps in.  
Basically it comes down to the fact that an actor is very hard to  replace if they get injured.  Especially when filming huge movies, the  production would grind to a halt and cost hundreds of thousands of  dollars if a star was hurt.  It is much easier to find someone of the  same height and weight as the actor, throw a wig on them, throw them  down a flight of stairs and if they get hurt, find someone else of the  same height and weight and put the wig on them.   
Many stars these days claim that they do all their own stunts.   There are some very talented action actors out there who are more than  capable of doing a majority of their own stunts and indeed, sometimes  do.  This statement does however negate the fact that a very talented  athlete spent hours or sometimes days rehearsing the moves and testing  the wires and taking the bumps and bruises that come along with finding  the best way to do a stunt.  Once the moves are completely tested and  rehearsed to the point that everyone has made the stunt as safe as it  can possibly be, the actor may step in and do the stunt, if production  approves the level of risk involved.  Sometimes the star may do a toned  down version of the stunt and then the stunt double steps in and does a  much more violent version.  In the edit, production will merge the two  versions. 
As for body doubling, in most movies there will also be a photo  double who comes in to do insert shots. Insert shots are shots of just a  hand or foot or something that doesn't require the actual actor being  there.   Unless the wardrobe is very hard or expensive to duplicate,  like in superhero movies, then the stunt double may step in to do photo  doubling.  
Stunt acting is different from stunt doubling.  Although I always  say that a good stunt double has to be a good physical actor too.  There  is nothing worse than being able to tell the difference between the way  an actor moves and the way the stunt double moves.  A good stunt double  will mimic the mannerisms of their actor so it is hard to tell that it  is not the actor doing the stunt.  A stunt actor is a stunt person who  has at least one line or plays themselves in a show.  An example is a  cop that yells "Freeze or I'll shoot" and then gets shot off a roof.   
Long explanation, sorry but that is a complex question.  
http://www.**************.com/images/users/gallerypictures/11534L.jpgPF:  How long have you been active in this industry  and how did you manage to break into it? 
KF: I have been in this industry 8 years.  I broke into the  industry in Vancouver, Canada.  I trained really hard in martial arts  and weapons, did extra work to gain set experience, got a set of  headshots, told anyone who would listen that I wanted to be a stunt  performer and finally got very lucky. 
PF: Was there a specific role you had that made you realize that  this was the job for you? 
KF: No.  I was simply tired of being an outdoor guide and was  looking for an equally as active job. 
PF: How do the selection process and work schedule differ for  stunt persons compared to actors? Is it similar in both television and  film? 
KF:  Selection process is different depending on the job that you  are going for.  If it is a skill based job (i.e. Martial arts), there  may be an audition of all the fighting women of a certain height and the  most talented girl of that height will get the job.  If it is just  general stunts like falling down or jumping out of the way of something,  a person may be chosen because they look most like the actor.  This can  include approval by both the director and the actor involved.  It is  similar for both tv and film. 
Work schedule is different from actors in that generally a stunt  performer will only be brought in for days that there is action  required.  This especially happens on tv.  An actor may work 5 days on  an episode but only have action on one day.  The stunt performer will be  brought in for this day only. 
On big budget action movies, a stunt performer may be brought in for  the entire filming of the show as there is generally a second action  unit going for big action sequences, rehearsals, and a first unit that  involves working with the actors. 
PF: It looks like your first comic book movie was as Sharon  Stone's double in Catwoman, did you work with her personally? 
KF: I was the second unit double on Catwoman.  The talented New  Zealand stunt performer Zoe Bell was the first unit double and so most  of the action sequences I did just involved stunt doubles rather than  actors.  She seemed nice though. 
PF: You also did stunt work for Jennifer Garner on her spin-off  film Elektra. She's been known to do many of her own fight  scenes, where did you come into play for that film? 
KF: I was the second unit double on Elektra, but this meant  that I tested all of the wire stunts to get them ready and safe for both  the first unit double and Jennifer.  I also rehearsed most of the fight  sequences, sometimes with the other actors.  Most memorable was my  training with Bob Sapp  he is huge and looks so scary but is such a  nice man.  Jennifer is such a dedicated, talented and hard working  actress that she did indeed do much of her own fighting but there were a  lot of wire stunts in that film that were way too dangerous for her and  so they were done by doubles. 
PF: Did you get a chance to travel to Europe to work on Blood  Rayne as Kristanna Lokens stunt double? What was your favorite part of  working on that film? 
KF: Unfortunately I was just brought in for the re-shoots for  that movie so I didnt end up working on it in Europe.  The most  memorable part, although I wouldnt call it a favorite, was that damn  weapon that they wanted us to use.   
I was brought in as the training sequences in the movie when she was  learning weapons skills needed some beefing up.  That weapon was so  heavy, completely unbalanced and incredibly unpractical.  It had a sharp  blade on the end that just cut up my biceps and was so hard to make it  look good.  I could hardly even lift my arms to scratch my nose at the  end of that day. 
PF: To date, which director do you have the most affinity for and  would like to work with again? 
KF: I dont know whether it is just because it is fresh in my  mind but I would have to say Kenneth Branagh [the Thor director].  A  lot of the time stunt performers dont work very closely with directors.   We take our instruction from the Stunt Coordinator who works closely  with the director but Kenneth just seemed to have a lot of respect for  stunt performers and often would ask our opinion on how best a move  would look.   
He has a great sense of humor and such a passion and enthusiasm for  the movie making process that it was awesome to watch and be a part of.