Chris Hemsworth posts throwback a photo with Tom Hiddleston to celebrate the 10th anniversary of 'Thor'

It has officially been 10 years since the world was first introduced to Chris Hemsworth as Thor and Tom Hiddleston as Loki. Hemsworth, 37, commemorated the occasion on Instagram this week with a photo of himself and his costar, 40, dressed in red and green, just like their warring-brother characters in 2011's "Thor" and subsequent iterations within the Marvel Cinematic Universe.