Casting spells

[geebsy]

Casting spells in the movie vs books

I have been wondering this for a while.  Do you think there is a 
difference between how JK has people cast (or throw) spells than the 
different directors do.   I am unable to get at my books as they are 
packed up because of renovations, but when I recently watch the DVDs 
I wondered if the difference was something other than mere 
theatricality.

In the movies people hold their wands differently than I amagined.  
In the movies many adults hold them like a conductor holds his 
batton, in the fingertips.  The students hold them like drum sticks 
(not the turkey kind).  I tried this with a drum stick myself  and 
realized you get much more subltle motions when you hold it by the 
finger-tips and  larger motions the other way.  We know wand motion 
is important to the spell or charm (think swish and flick).  This 
leads me to OoTP movie.  There is more wand magic going on in this 
book/movie than the previous ones, especially the DA and Battle in 
the Ministry.  

Colour plays a very important part in the spells as well.  That 
sickly green is reserved for the Unforgivables, and others have been 
given colours that have a unique signature.  Do the colours JK has 
given them in the books coincide with the movies?  I keep thinking 
that might make it easier to identify some of the spells being 
thrown around in the MoM.

Theres lots more floating in my mind, but I simply must go get my  
morning coffee. (mmmmmmmmm coffee)

Roxane