Honestly, the LED looks like it should have been there to begin with, the light "matches" the tone of the other lighting and aren't ridiculously expensive. If you're looking to black out the car I guess the film might work, but over the orange lights is just going to look strange. Worse when illuminated I would think.
IMO the stock US side markers are orange, the "Clear" side markers are silver, and the "LED" side markers are black. They LED side markers read MUCH darker than the "Clear" non-LED markers. My dealership swapped the orange for clear, but I still went and bought LED and swapped them.