Yes. No doubt, the greenscreen is a cumbersome piece of equipment and it'll take some logistical work to get it set up on location, but it really is the best solution. There are a limited number of shots that need the altered skies. Having the greenscreen on location allows you take out what you need without having to replace all of the backgrounds.
First you'll shoot the actors in front of greenscreen.
Then you bring the shot back to your computer facility in Los Angeles.
You next create your desired look for the ominous skies.
Add your actor back into the shot and they are in their own
