[ Thanks to lh8
for this link. ]
“Add Celtx to your software toolbox, then get ready to sign the
standard ‘rich and famous’ contract. Celtx is media pre-production
software for writing screenplays and keeping track of all the
details that make up the production of a movie, theatrical
production, or animation project.“Celtx is based on Firefox 1.5, and is available under a
modified Mozilla Public License (MPL) called the Celtx Public
License (CePL). It’s interesting how the Celtx team has transformed
the Firefox codebase into something almost completely
different…”