United Kingdom, April 19 -- David Oyelowo will "never" be away from his wife for more than a fortnight.

The 49-year-old actor has been married to 'Captive' actress Jessica Watson, 47, since 1998 and has Asher, Penuel, Caleb, and Zoe with her, but insisted that there are certain "non-negotiables" in place which have meant they have stood the test of time.

He told The Guardian: "My wife was told her IQ is off the charts during an assessment for ADHD. Now, she's a member of Mensa. Our four children are neurodiverse, too. They have incredibly special attributes that they wear as superpowers. I'm in awe that I get to be their father.

"Any lasting relationship needs non-negotiables. We made the decision early on never to be apart for longer ...