Doing what you want uses a lot of GB and and you will probably be limited a very few movies per month.
Satellite accounts limit your use to so many MB per day depending on your plan. More expensive plans have more MB allowed. I don't know of any plans that would allow a lot of movies each month.
Aircards/cellular modems also have limits. I think Millenicom has one of the more generous plans available. They resell Verizon and Sprint. Their best Verizon plan offers 20 GB per month and an "unlimited" plan with Sprint. Sprint doesn't have nearly the coverage Verizon does and people have complained that Millenicom has threated to cut them off if they consistently use what they consider too many GB.