Lemmy ( click for info & trailer) from MOTORHEAD.
In fact we don't really know if it was a premiere as the movie won't be out in cinemas in France.
It is part of the Etrange Festival which is showing lots of classic & independant fucked up (rock, gore,Horror , thriller,fantastic B or Z movies, Korean... ) movies from all over the world until Sept 12.
It is 2 hour long, really good even though the beginning frightened me a bit as it's only famous musicians ( Alice Cooper, Slash , Dave Grohl, Metallica and suprisingly Jarvis Cocker from Pulp among many others ) telling how great is Lemmy.
A tiny bit of history (with The Rocking Vickers, Hawkwind) interviews, his life in L.A. and some live footages including one with Metallica or his guest apperances with other artists.
It's not too academic, it is more about Lemmy the man than a historical doc about Lemmy from his first band to Motorhead.
It is very interesting, a must see.