I just got fly fishing and fly tying II DVD from celtic fly, which also comes along with a useful book
http://www.celticflycraft.co.uk/acat..._DVD_Book.html
This is amazing - buy it now !!!. It is the single most useful DVD I have seen for river fly fishing and I have all Olly Edwards plus one J Tyzack.
All this talk of french nymphing on the forums etc and it made no sense to me but it all became clear very quickly watching it done by an expert.
There are underwater fish shots ( quite a lot) LOTS of fishing footage - it runs over an hour and it mostly film of actual fishing rather than how to tie your rig up, discussion etc. The discussion and instruction is dubbed over the top of the footage so you get both at the same time (In English although it is clearly being read from a translation - you can follow it easily enough but does border on IKEA furniture instruction manual English at times). The fly tying sections are quick and inspiring, makes you want to get the vice out straight away.
It Covers a lot of ground
French Nymph
Short Nymphing
Long nymphing
streamer fishing
Dry fly
The book gives technical specs for leader construction and
222 patterns for flies

.
There are also instructional sections (Step by steps) in the book.
£ 25 for both the book and DVD !!!
Joel