difficult to tell actually who be copy whom since apparently deep core be dated 2000 and the core be date 2003. at any rate and the similarity ( but not the budget ) be compel represent 1 ) laser operate drilling gizmo for go through the earth 2 ) lot of magma around 3 ) people get snuff by magma 4 ) earth put in peril by misuse of something relate to drilling or earthquakes 5 ) nuke need to restore balance 6 ) five nuke require 7 ) detachable unit ( s ) and at least one require for success . draw your own conclusion . i must admit that wil wheaton do a credible job . i do not mind him get snuff though . oz .