Regarding his stature in modern sci-fi - I'm not sure he's any bigger than Zoe Saldana, Harrison Ford, or Bruce Willis. And with SW coming up - and if Fisher, Hamill and Ford possibly showing up again - that will eclipse everything else out there.
Zoe Saldana? Are you crediting the box office grosses of Avatar and Star Trek to her? By that same standard, Jeff Goldblum was the No. 1 actor in the world after Independence Day and Jurassic Park.
Columbiana is more reflective of Saldana's draw.