Longman Dictionary of Contemporary English
off-screen
adverb
EXAMPLES FROM OTHER ENTRIES
▪ Off-screen, Costner is a down-to-earth kind of guy.
Wiktionary
off-screen
a. (alternative form of offscreen English)
Usage examples of "off-screen".
The first rushes were in the promised hieratic manner and made Grandison Whiting seem even more Grandisonian than he did off-screen.
The hapless Arbuckle had finally brought down the concerted wrath of Puritan America on the sinful movie stars who, after celebrating every sort of immorality on-screen then, off-screen, busily burst the bladders of virgin girls and worse.