Corrected entry: As Deke is outside looking around during the day, you can flashes of the green screen he is actually looking at reflected in his glasses and not the blue skies that were digitally added later.
Corrected entry: Agent Coulson's flying car Lola is the same car as the one Howard Stark was showing off in the first Captain America movie.
Correction: No it is not. Lola is a 1962 Chevrolet Corvette. The car seen in Captain America is a 1941 Cadillac Series 62. Similar technology, different vehicles.
Corrected entry: When Coulson, Ward and Hill are watching the video of Mike saving the woman from the burning building, as the shot cuts to Coulson saying "A little present from Rising Tide", there is a long reflection of his watch coming from a light. Coulson doesn't move in the next shot. But the reflection has gone when the shot cuts back to him. (00:08:25)
Correction: His wrist would need to move only a very tiny amount to change the angle of reflection entirely, making it disappear.
Correction: It's not green screen reflected in his glasses. It's simply the sky and buildings tinted by the colour of his lenses.
Well I'll be...you're right. It's the color of his glasses. It's the light coming through.
DetectiveGadget85