Coming in the very near future is a documentary on Archbishop Lefebvre. It looks to be very interesting. In the meantime if you are interested in learning more about him and the modernism he opposed in the Church, there are a few good books worth reading listed below the video.
Marcel Lefebvre: The Biography-
I am reading this now and it very well written. It is well over 600 pages so it is not for the light reader.
Horn Of The Unicorn
For those who want a more abbreviated and headline type biography, this may be the book you want to start with.
I Accuse The Council
Don't be put off by the title. This book summarizes the interventions that Lefebvre was involved in during the Second Vatican Council. It makes for interesting reading.
They Have Uncrowned Him
This is his work detailing his thoughts on the history of modernism and how he perceived it to be creeping into the Church.