Found this amazing 2.5 hours behind the scenes documentary titled Keepers of the Covenant covering the making of Exodus: Gods and Kings.
Was looking for this for ages, seems a suitable Easter gift considering the theme of the movie and The Ten Commandments is almost every year shown on cable tv.
This was again directed by Charles de Lauzirika, so it's not surprising that it offers an absolutely amazing inside look at the making of process.