When we are going to make a video using a green screen we need:

2. A background Footage

3. a green screen Footage

4. Chroma Key Editing Program (After Effects)

Adobe After Effects

We click on composition, then click on new composition

Double click on this space and we import the footage.

After importing the footage we put it in this section called the time line.

We click on effect then click key.

Click chroma key

Part of the geen footage dissapear.

We put color tolerance to 172

Put border to 0.3

Follow Movement

We go to file export click avi and then save.