At Once Upon a Theatre we usually take a familiar tale, mess around with it a bit, and put out a charming musical with a strong family resemblance to the original story. This time around, however, be warned: we've got Goldilocks, but she doesn't break into the bears' house, eat their food, use their chairs, and sleep in their beds, and let's face it--that was the plot.
In our version ... well, let's just say we still have bears, porridge, and uncomfortable chairs, but we've added janitors, chainsaws, rocking chairs, elephants, talking birds, and duelling porridge restaurants. (And wonderful, wonderful music.)
The original story of Goldilocks ... how should we break this to you ... well, to be perfectly honest, the original story of Golidlocks lacked Goldilocks entirely. That's right--there were three bears, but their antagonist wasn't a rather greedy flaxen haired girl, but an old woman, tired from being out in the forest all day. (See Andrew Lang's Green Fairy Book.)
Goldilocks herself, so far as I can tell, first makes an appearance in Andrew Lang's Blue Fairy Book, not as a ordinary girl but as Princess Goldilocks (how fancy!) who is the "prettiest creature in the world ... everybody who saw her fell in love with her." Basically, the poor dear is stalked by a King and his hireling, Charming (later Prince Charming), but many adventures later falls madly in love with Charming and weds him. No bears at all.
As far as I know (and I'm happy to be corrected) the pairing of Goldilocks with the Three Bears is entirely a twentieth century invention.