That much/so much

Can one say
a. There is actually that much you will see in this movie that you can believe.
b. There is actually so much you will see in this movie that you can believe.

c. There is only that much you will see in this movie that you can believe.
d. There is only so much you will see in this movie that you can believe.
?


Which of them mean
1. There is quite a good deal you will see in this movie that you can believe.
and which of them mean
2. There is only a limited amount of stuff that you will see in this movie that you can believe
?


Many thanks