The 3rd Dimension

Monster House
2006 (2010) - Sony Pictures Home Entertainment

We've all known that cranky old neighbor who screams "Get off my lawn!" at you. But what if he actually a reason for doing so? Mr. Nebbercracker has mysteriously amassed a dragon's horde of tricycles, basketballs and kites beneath his house over the last 40 years, and it's up to intrepid young DJ (whose parents are away for the weekend), and a self-absorbed teenage babysitter, to crack the mystery of how and why.