Cold Water: The famous pool scene with Wendy Peffercorn was filmed in 56-degree water during a Salt Lake City heatwave.

"You're Killing Me, Smalls": Actor Patrick Renna, who played Hamilton "Ham" Porter, was actually the very last kid to be cast.

The Tree: The big treehouse tree was real, but its original leaves were removed and replaced with over 1 million silk leaves to keep it green for filming.