Prompt: For this futuristic film poster starring Liam Hemsworth and Shailene Woodley, imagine a cutting-edge world where technology and adventure meet. Use innovative visual elements to represent the duo at the heart of the plot. Create a futuristic atmosphere with shades of blue and metal, incorporating high-tech elements and modern cityscapes. The composition should capture the energy of action and mystery, hinting at an epic story. Don't forget to add eye-catching special effects to reinforce the film's futuristic character. Finally, make sure that the expressive faces of Liam Hemsworth and Shailene Woodley are well brought out, adding a touch of emotion to the poster.