How can I edit the prompt of my generated video?

You can edit the prompt of the video you have already generated from the prompt option on top of the preview.

Step 1: Click on the + icon on top of the preview.

Step 2: Click on the Edit prompt button,

Step 3: Edit your prompt then click on Generate video

Note: Regenerating from the prompt box will count towards your generation minutes, as it makes a new video for. You can always edit the script of the video as well and make changes as shown here.