I made changes to my film poster by deleting the old indent, inserting a new indent, copying and pasting it onto the poster, cropping the excess background around the indent using the crop tool, reducing the size of the indent so it fit properly, and exporting the final poster as a JPEG file.

1. Making changes to film poster
I deleted the indent from my film poster
I then inserted my new indent.

2. I copied and pasted it onto my film poster.

3. I then zoomed in and used the crop tool to crop the excess background around
my indent.
I then reduced the size of my indent so that it fitted appropriately into the
space available.

4. I then exported it as a jpeg.