Where can I watch free movies online without downloads or adds on my iPhone 4?

I want to watch madea goes to jail on my iPhone but it won't let me
If you can please help I would really appreciate it c

YouTube, but it has limited selections.

Go to letmewatchthis.com and type in the movie. Pick the one you want. And the ones I use are gorillavid, sockshare, and sharesix. The other ones are a pain in the but. Hope this helped.