Filming With A Green Screen

Today I started filming for my sort film call 'Cold Fusion' for this scene I used a green screen. This was the first time I had ever used a one.
This is what my set up looked liked. I used two lights to light the green screen as you need to get the same colour a cross the whole green screen. I then used two soft boxes for the actors.

Once I was in Premiere Pro I was able to use the 'Ultra Key' tool select the green screen. Once I had done this I was able to use photos to place over the green screen.    
The last image is of what the scene could look like once I put a photo in.