The Sky-High City of Steampuff (2012)

The Sky-High City of Steampuff is a floating island hidden among the clouds. When Steampuff's architect Haephestus Von Toot (who has been charged with keeping the world of Steampuff aloft) is suddenly kidnapped by the robotic Killamari, it's up to his only son Victor to rescue him. Fortunately, his father left behind a treasure-trove of steam-powered gizmos and companions to aid Victor on this dangerous quest. With the help of Duchess the sassy automaton housemaid, Rivet the croaking robot frog and Samson the transforming locomotive, Victor must find his father and prevent the city from falling from the sky. Along the journey, he will discover something even more treacherous: the truth about his own family.