How much did Avatar cost to make? How much will it cost to go to Mars?
The Space Review estimated in 2010 the cost of Apollo from 1959 to 1973 as $20.4 billion, or $109 billion in 2010 dollars, averaged over the six landings as $18 billion each. [2]
[1] http://en.wikipedia.org/wiki/Avatar_%282009_film%29 [2] http://en.wikipedia.org/wiki/Apollo_program#Program_cost