Corrected entry: Wesley enters Vladimir's office to talk with him and Vladimir had a large white window behind him. As they talk, the reflection of a green screen of these windows is in Wesley's glasses. (00:06:34)
Corrected entry: Matt is fighting a white guy with a hat in an alley - he breaks his arm and the guy drops heroin bundles. During a quick shot change the white guy is all of a sudden black, with no hat. Then he's a white guy again. (00:17:50)





Correction: I believe this is just the reflection of the window. Modern glasses have an anti-reflective coating on the lenses that can sometimes cause certain reflections to appear green. I dated a girl who wore glasses, and I regularly noticed reflections in them that were green in colour.
Phaneron ★
Not to mention, why would they use a green screen if nothing is visible outside the window? For that matter, why would they illuminate a green screen if it wasn't visible in the shot?