up a lot of cash that will not be "realized" for many years. To use your example: If you buya stock at say $32 and think it will ultimately be worth $90.. the point then becomes "when" wil lthis happen?
If it is a large scale movie that is not yet in production, it wil most likely not be seen for two years... (due to scripting, casting, pre-production, production, post production and then a layered marketing plan)
So you are holding onto a stock for at least two years to earn $58/share.
If you due the math on a daily return, you can see that you are not really getting a large bang for your buck versus say...playing OW stocks which pay you in a three day adjusted return.
The secorndary benefit is that the money is returned to be invested immediately.
My point being, when you have limited funds, I would look at not "holding" long on many stocks and definitely not any stocks that are not going to be released in the next 6 months.
To answer your question: The stock movement before it is released is 100% based on other investers and long term development stocks will typically "leak" dollars until "real" information about movie starts to pour out.
Keep and eye on the "movie board" and you will see "news" reports and then be able to see "immediate" stock movement, in both directions depending on the info.
Think "short term" right now and you will reap the benefit.
All of this is just my opnion, by the way :)
Good Luck!!