At the end, when the kids are on the beach and all the parents come, Data says something about a giant octopus. What is he talking about? This was a scene that got deleted but the line stayed in.

In the end where the kids meet up with their family on the beach, Chunk's sister in the movie is actually his real-life sister.

Richard Donner, the film's director, had an uncredited cameo appearance as a police officer.

When Chunk is being interrogated by the Fratellis he mentions a prank where he mixed some fake puke and dropped it over a balcony in a cinema on other people and they all started puking for real. This is an actual prank that producer Steven Spielberg did for real when he was a kid.

When Chunk calls the police the officer mentions 'those little creatures that multiply when touched by water'. This is of course Gremlins, which was also executive produced by Steven Spielberg and Corey Feldman has a role.

When Jake Fratelli is escaping from prison and running to Mama Fratelli's car, he is wearing a hat. The hat he is wearing is identical to Indiana Jones' - films directed by Steven Spielberg, who created the story for The Goonies.

During the scene when the Goonies are down in the cave, at one point you can hear Sean Astin say "Holy Mackenzi" Mackenzi is his real brother's name who is also an actor.

The name of the Fratelli Family in this film was the inspiration for the band "The Fratellis".

I am not sure if he has it on earlier, but in some of the scenes on the pirate ship, Sloth has a Raiders shirt on. The actor John Matuszak played football for the Oakland/L.A. raiders.

When the Fratellis first catch up with the kids, Data yells out, "Holy S-H-I-T". On the DVD Commentary, Ke Quan explains he spelled out the word because his mother did not allow him to curse. He figured if he spelled it, that it didn't really count as cursing.

In the scene when the old men from the country club are taking a shower, notice the man in the middle wearing an eyepatch - a reference to pirates?

No surprise that Sloth is wearing a Superman shirt when they're on the pirate ship. Goonies director Richard Donner also directed Superman.