The movie star admits the eye patch his character Nick Fury wears played tricks with his mind - and he eventually had to learn his lines with one eye covered.
He tells Entertainment Weekly magazine, "I was trying to remember my lines, but when I got there, I put the eye patch on and could only see half the page in my head.
"I didn't figure it out until halfway through the day. I had to take it (script), cover my eye, and relearn the lines... There was just something in my brain that wouldn't let me learn it with two eyes and then put the patch on and remember them. It was f**ked up."