An original production used first draft script for Honey I Blew Up the Kid written by Thom E. Eberhardt (Night of the Comet)

The script was originally not even intended as a sequel but was titled Big Baby and written by Gary Goodrow and Peter Elbling. Disney recognized that it could be rewritten as a sequel to the successful Honey I Shrunk The Kids and this version was born. This truly is the first draft of the sequel and is dated Christmas Eve 1990 and is titled "Honey, I Blew Up The Baby". The various locations have been highlighted throughout, likely an attempt to get a feel for the potential size and budget of the movie.

It is printed on white paper which has yellowed with age.

It is significantly different to the final picture and would undergo several rewrites before it got committed to film.

Interestingly it states "Embellished by Charlie Haas". Charlie Haas went on to write and star in Gremlins 2 and Matinee and as far as I know has never been associated with this movie. His name did not appear on future revisions.