Looking for moive apps for ipod touch? Please help?

Hi. I'm looking for an app for my ipod touch 4th gen that i can watch movies on WHILE i'm offline ( ex: in car, on airplane). Netflix was great but it will not let me watch videos when i am not connected to internet. And itunes, its okay but i'd rather want to pay 7 or 8 dollars a month to watch movies on my ipod while offline. Please tell me which app you used and if its worth it. Thanks so much :)