For this event, I used four separate photographs that I took in a photo collage for the poster, as well as superimposing text for the drive-in sign. The sky is a creative commons image, as well as the martini glass used as a pattern on the invitation envelope.
This was made as a gift for a friend who loves going to the drive-in, and features her sitting in the back of her car, in front of the sign for our local drive-in theater, which I re-named after her. This was gifted to her for her birthday, and she was thrilled with it.