At first you sold it on royalities which means you got to collect from Big Al Building for 7 days (have a look at the stats in your office).

Secondly your rating (7.5) is not that good. With a 8.x or better 9.x you would make more money. Here you should adjust your settings (100% in script and movie is the goal) and the sexual preferences of your actresses should match your bonus combos (3 stars for every position/scene, can be seen after you added the actresses to the film, before you pick director;-). Higher level, more educated and maybe famous actresses also improve your rating and income (experience gain increasing appartements with player level 50 and regular courses at the film academy when girl leveled up might help in this case).

Have fun!