According to the Hollywood Reporter, development on a sequel began in 2001 (seriously? Not 1995?), with Bonnie Hunt being hired to write a screenplay. Her screenplay, and many others, were ultimately rejected, in a costly development process that yielded no results. When Berenbaum became attached earlier this year, it was with an idea that was finally strong enough for both Columbus and Williams to get behind. While it's far from a sure thing, it's the closest the movie has come to actively getting made, so here's hoping.
The original film, which came out in 1993 and co-starred Sally Field and Pierce Brosnan, made $219 million domestically and $222 million internationally, with Williams picking up a Golden Globe for his work and the movie winning the same award for Best Musical/Comedy.
If the movie does finally materialize maybe we can finally get funding for our "Saving Mr. Banks"-style behind-the-scenes movie based on the making of the original film, starring Tom Hanks as an energetic young Robin Williams.