Do you have to have WiFi to watch a stored movie from iCloud

The only wifi I have is on my iPhone and my iPad Air. No wifi connection at home otherwise. I use wireless places in town to download movies to my work iPad mini but no wifi on it unless I use one of my other devices as a hotspot. I want to watch these movies on my tv and I'm trying to decide if the Apple TV is the route to take. Will I be able to use it properly without having wifi at home?

Apple TV

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