Professor Popper's Problems

Professor Popper develops a shrinking formula which he and a group of school kids take by accident, ending up trapped in his laboratory. But that's not the only problem that faces the professor and his friends. Professor Popper develops a shrinking formula which he and a group of school kids take by accident, ending up trapped in his laboratory. But that's not the only problem that faces the professor and his friends. Professor Popper develops a shrinking formula which he and a group of school kids take by accident, ending up trapped in his laboratory. But that's not the only problem that faces the professor and his friends. Professor Popper develops a shrinking formula which he and a group of school kids take by accident, ending up trapped in his laboratory. But that's not the only problem that faces the professor and his friends.