Find out more about Steve and Riley, and if they haven't already visited your school, perhaps you could ask your principal or teacher to invite them!
Does any one you know have a camera that can film underwater?
If not, can you think of a way to make it LOOK like you're underwater as you record your movie?
Grab a phone or iPad and get creative with what you film! Could blue or green cellophane work? Or a blue scarf from one of the adults in your house?
Can you make a movie about an underwater creature such as a shark or turtle?
A clear bubble of plastic or glass that keeps a camera and lens dry underwater. The round shape allows the lens to see more left and right, and also makes the dome very strong so it doesn't break from the water pressure when diving.
A clear piece of plastic, glass, or other see-through material that changes the direction of light. This is called focusing, and without a lens, everything would look blurry. For cameras you can buy lenses with different magnification to make the world look bigger or smaller.