MCU: 10 Sneaky CGI Moments You Probably Didn't Notice
8. Thor's Eyepatch (Various Movies)
Even though he's since got rid of it, there was a brief period of time in which Thor wore an eyepatch. He wasn't the first MCU character to attempt this look, of course - that honour goes to Nick Fury - and while the two patches served the same function of covering up an injury, they weren't implemented in the same way by the filmmakers.
When the time came for Thor to have his eye gouged out by Hela and thus require an eyepatch, Chris Hemsworth was initially given a real one to work with. However, he told CinemaBlend that it was a pain to manage because it kept falling off, and this resulted in the filmmakers having to add a digital one to his face in post-production:
"...the day that we put the eyepatch on I was like, 'This is ridiculous.' The thing kept falling off, and we didn't have the thing [gestures an eyepatch strap]. So it became a CG eyepatch, which I was stoked about".
It's unclear why Thor wasn't given an eyepatch strap and Nick Fury was, but regardless, this decision undoubtedly made things easier for Hemsworth, and for us viewers, it was impossible to tell that the eyepatch wasn't really there.