HexCheat:

 Play the game as usuall: Pick up the highest credit possible,
 take the best actors, director, etc. to make a film. After the
 movie has been ended pay back the credit and now you have
 999.999.999.999 $ Problem? Right, it takes to long to make the
 film.

 Alas, load the savegame into the hex editor and change the first
 four offsets to 01. When you start the game now the movie is
 done the next day.