It Might Get Loud is an excellent documentary I only found out about this week but it is very much worth a watch.
It contrasts The Edge’s minimalist playing style and obsessive use of effects with the completely stripped back sound and bluesy style of Jack White.
It Might Get Loud

Jimmy Page with his famous double neck Guitar

In the middle we have Jimmy Page who influenced them both , talking about what influenced him and his sound.One of my favourite parts was seeing Jimmy Page talking about how much work and dedication he put into the Guitar, even bringing it to school with him everyday to practise during breaks. An example to all.The Jams between the 3 of them are interesting also
Below is a You Tube link to the full film: