Capitals

When writing the title of a play on programme cover or in an article, which is correct? e.g.

‘One Flew Over The Cuckoo’s Nest’

“One Flew Over The Cuckoo’s Nest”

‘One flew over the Cuckoo’s Nest’

One flew over the cuckoo’s nest

One flew over the Cuckoo’s Nest

‘One Flew over the Cuckoo’s Nest’

Or do you have a version of your own?