Anything by Ridley Scott needs to be seen in a theater.
The scenic shots of New Zealand in Lord of the Rings were stunning and some of the special effects shots were nice. The rest, i.e., most, of the films ... not really.
POTENTIAL SPOILER FOLLOWS
One aspect of Avatar, if my Informed Sources are correct ;-), I find intriguing is the film's use of the Yggdrasil motif. It was used in The Fountain but in such a disconnected way, and it's so unfamiliar with modern audiences, I doubt it came across.
Shades of: Tapio You can't be me, I'm taken
....this I am looking forward ro.... "Any economic unit can emit money. The serious problem is to get it accepted" Hyman Minsky