Brainstorm 2

This is an idea based on I dream I had a little while ago. It was so interesting and vivid that I still remember a good portion of it. However, I am a little upset that I didn't write it down and let a lot of it get lost. 

Imagine a feature length film about a young boy and a very important decision that he has to make. He's about 8 or 9 years old and he lives a normal life with a normal family that consists of a mom, a dad, and and teen sister. One day they are out at a giant supermarket when a hole in the universe opens up. The family is swallowed up. On the other side is an alternate reality. Everything appears very similar. Everyone in the family is aware of what just happened and are frightened, except the boy. He is overwhelmed with new memories that he never had before. Memories so clear that the alternate universe feels like where he was suppose to be all along. They meet another similar family, except there is no son. The new family then tries to convince him that they are his real family. They succeed because he is so convinced by the "memories" and he chooses to stay, at which point his family is all of the sudden sent back to their world. They then have to find ways to get him back.

There is still a lot that needs to be worked out. It is kind of Inception-esque, but it's not about dreams. It's about alternate realities. I guess more similar to Fringe.