In 5 years Unity will completely dominate the creative space, even outside of games you're going to be finding this tech everywhere and there is no double in my mind you'll be seeing the unity logo at the end of summer blockbuster credit sequences.
Unreal Engine is already very far ahead into the cinema space and already being used in numerous works being produced. Epic has been investing money into supporting toolchains and devices built to support Unreal Engine in cinema to boot. I simply don't see Unity catching up.
