It seems like it's been in development forever (at least, its cancelled CG counterpart was), but the live-action adaptation of "G-Force"/"Battle of the Planets" is on the way to Japanese theaters in August--and it's looks pretty good. "Gatchaman" is from longtime TV director Toya Sato, but that doesn't mean he's skimped on the scope and scale of the action, which seems to lift a lot visually from the original animated Tatsunoko anime, complete with explosions and and flying super ninjas taking down costumed terrorists.
The instinct is to complain that this is another case of the source material getting a gritty update for modern audiences, but Yusuke Watanabe's (he wrote the excellent "GANTZ" live-action adaptations) script is probably would have a hard time topping the massive death and destruction of the original series.
Here's the synopsis from Asian Media Wiki:
Set in the near future in Tokyo, Japan. The evil terrorist organization Galactor has declared war on the world. The group possesses more advanced technology than governments and occupies over half of the planet. Dr. Kozaburo Nambu of the International Science Organization gathers together 5 superhero ninja agents, known collectively as Gatchaman, to stop Galactor.
"Gatchaman" will be released on August 24 to Japanese theaters. Hopefully, we won't have to wait too long for it to make its way to the States.