Continuity mistake: The amount of jewels in the person's hand change position, size, and shape in the span of two shots near the end of the film when everyone is looking at them.
Factual error: When the Goonies go below deck on the pirate ship, we can see water is leaking through the hatches on deck. In reality, the ship would've filled up with water and sunk in a matter of weeks, if not days, so there's no way on Earth that it lasted as long as portrayed in the film.
Continuity mistake: When Data starts being pulled towards the bin, the first shot shows him a half foot away from the bin. The second shot shows him several meters away from the bin. Then the third shot that shows Data falling into the bin shows him only an inch away from the bin at the start of the shot. (00:04:05)
Continuity mistake: The gang never take their coats with them after leaving the house, and there wasn't anything for them to put the coats in. Yet they somehow have their coats when they get to the restaurant. (00:23:30 - 00:27:10)
Continuity mistake: At the start, when Data's suction dart attaches itself to the orange drum, there are tall metal pieces of junk behind the grey drum which disappear, as the orange drum is being pulled forward toward Data. (00:03:55)
Answer: He says, "He is a big strong man."