GI Joe movie

That's not Harrison Ford... that's Dennis Quaid...

"same person!" "i challenege anyone to prove when they were on the same camera frame at the same time"

((well they look the same to me))

Umm... Harrison Ford... iconic actor... Han Solo... Indiana Jones... Mr. President (Air Force One)... Jack Ryan...

Umm... Dennis Quaid... ummm... Inner Space?

Sorry... but hands down, no contest on which actor is more iconic and recognizeable. 

Ya I see some similarities.. but no... Dennis Quaid is no Harison Ford.

On the other hand, Wyonna Ryder and Kierra Knightly are indeed the same actress. After she got caught shoplifting and her career was ruined, she changed her name and stared in Pirates of the Carabian, and BAMN... everyone's fooled...

I don't see that, as Winona has boobs and Kiera doesn't.  No offense to Kiera... I think she's very attractive, but not curvaceous.

2 actors I do get confused sometimes is Christopher Meloni (from Law and Order: SVU) and Elias Koteas (various movies).
On the ladies' side... Emmanuelle Chriqui and Salma Hayek... they get me seeing double as well.

While no Harrison Ford, Quaid has had a few memorable rolls:  Great Balls of Fire, Wyatt Earp, The Right Stuff and Enemy Mine.