What's the Big Frigin'

DIFFERENCE?

7/6/2013 5:00 AM PDT BY TMZ STAFF
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There are two incredibly cute things in the above photos and three incredibly sneaky differences hidden inside them. Take your time staring at Channing Tatum holding a puppy ... and when you are done, see if you can spot the subtle changes to the photos.

If you'd rather just stare at Channing holding a cute dog, we understand.