Trivia: 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.
Trivia: Richard Donner, the film's director, has an uncredited cameo appearance as a police officer, on the beach at the end.
Trivia: 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.
Trivia: When Jake Fratelli is escaping from the jail and running to Mama Fratelli's car, he is wearing a hat. The hat he is wearing is identical to Indiana Jones' hat in Raiders of the Lost Ark, and its sequels/prequels - films directed by Steven Spielberg, who created the story for The Goonies.
Trivia: Just before the Goonies reach the room with the bone keys, when the Fratellis shoot at them Mikey shouts, "Holy Mackenzi!" Sean Astin, who plays Mikey, has a brother Mackenzi, who is also an actor.
Trivia: Some notable cameos: The director of photography, Nick McLean, plays Mouth's father, Mr. Devereaux. The second unit's first assistant director, Newt Arnold, plays one of the men in the shower at the Astoria Country Club. The film's stunt coordinator, George Robotham, plays the guard at the County Jail. The executive assistant to director Richard Donner, Jennie Lew Tugend, plays Data's mother, Mrs. Wang.
Trivia: The pirate ship in this film was entirely real. After the film's release, it was offered to anyone who would take it. Unfortunately no-one wanted it, so the ship was scrapped.
Trivia: When the Goonies descend into the fireplace, Ma Fratelli, Jake and Francis walk into the room. Ma Fratelli makes a comment about someone having been there, as the water jug is busted. Jake replies that maybe it was just a tremor. She responds by saying she'll show him a tremor and slaps him. As she does, she accidentally yanks Francis's headphones out of the jack and he almost drops the walkman he's holding. He starts to crack up with laughter, but manages to hold it together.
Trivia: Throughout the filming, Corey Feldman and Martha Plimpton did not get along at all. On one occasion, Feldman irritated Plimpton so much that an actual fight broke out between the two which had to be broken up by the on-set tutor.
Trivia: When Data uses his "slick shoes" to lace the log with oil to prevent the Fratellis from following them, the "oil" you see was actually a mixture of glycerine, water and food colouring.
Answer: According to Mikey and Mr. Walsh, one of his crewmen must have taken the map and fled when One Eyed Willie was murdering his crew. This is substantiated in the novelization.