Design a theatrical poster for a fictional movie. At the center of the poster stands a young Hispanic girl with long black hair. She's dressed in a white blouse, a red coat, red skirt, and red shoes, and holds a mini robot with expressive eyes. To her right are a South Asian boy and a Caucasian girl, both cheerfully smiling. In the background, a Middle-Eastern woman in a doctor's robe and a Black man in a business suit beam joyfully. A small dog dons a detective hat and coat, adding a touch of mystery to the scene. Further in the background, a bespectacled teenage boy of East Asian descent holds a globe in his hand and sports a cunning smirk. The backdrop to this diverse cast features futuristic buildings and streets bustling with robotic technology, flying drones, and spots of green, thriving with lush plants and trees.