I'd say it's more of a love story. The way Wall-E and Eve care for each other goes beyond just friendship. Their emotions and actions suggest a profound love.
Wall E could potentially fit into the time after the fall of the Empire. When the New Republic is starting to rebuild, his skills in waste management and environmental restoration could be really useful on planets that were damaged during the war.
Wall E, a small and lonely robot, lived in a desolate world full of rubbish. He was a hardworking little fellow, always cleaning up the mess around him. One day, he noticed a glimmer of green among the gray waste. It was a plant, a symbol of life. Wall E was so excited that he started to build a little shelter around it. Not long after, a sleek and advanced robot named EVE landed on the planet. EVE was sent to search for signs of life. When Wall E showed her the plant, she was astonished. Their story continued as they worked together to preserve the plant and perhaps, bring new hope to the dying world. Along the way, Wall E's simple and kind nature won EVE's heart, and they became great friends in this post - apocalyptic world.
Well, it's mainly about Wall E. Wall E is alone at first, just doing his job of compacting garbage. But then he discovers a little plant, which is very important as it represents hope. In the bedtime story version, it could focus on how Wall E takes care of this plant, and how this discovery changes his simple life. It may also touch on the themes of loneliness and finding purpose, which are quite engaging for kids at bedtime.
It depends. Sometimes you can come across it on specific literary websites or eBook platforms. However, make sure you're accessing it from legal and authorized sources.