1) Sean Astin, who played Mikey, was allowed to keep One-Eyed Willie's treasure map from the movie, but, years later, his mother cleaned out his bedroom and threw away the map without realizing its value.
2) Randell Widner, the stunt double for John Matuszak who played Sloth, had to shadow the former football player around town to make sure he got back to the hotel due to his drinking habits, drug use and penchant for picking fights.
3) In part of the movie, Sloth is seen wearing an Oakland Raiders t-shirt; a team John Matuszak played for …show more content…
7) The presentation of the pirate ship to the young cast was kept under wraps until filming to capture authentic reactions, but, according to Josh Brolin (Brandon Walsh), he ruined the take with a shouted expletive caused by his shock at seeing the realistic ship.
8) Astoria, Oregon, the town where "The Goonies" was filmed, holds an annual festival celebrating the release of the film that includes tours, scavenger hunts, and visits from cast members like Sean Astin, Jeff Cohen (Chunk), and Jonathan Ke Quan (Data).
9) Cyndi Lauper's song, "The Goonies R Good Enough" was made into a music video running 12 minutes in length and featuring cameos by all the Goonies with the exception Kerri Green (Andy), Steven Spielberg, Captain Lou Albano, Andre the Giant, and The Bangles.
10) Harrison Ford, Peewee Herman, and Michael Jackson all visited the set; Michael Jackson spending the most time onsite mingling with cast members and the