Jada Pinkett Smith says working with husband Will Smith puts a strain on their marriage.

The actress — who has two children with Will — asked the actor to direct her scenes in upcoming movie 'The Human Contract', but admits the request led to tension in the family.

She said: "The family that directs together has to work hard to stay together!"

Jada (37) also revealed how her 10-year-old son Jaden ended up starring as his dad's on-screen son in 'The Pursuit of Happyness'.

She added: "When Jaden heard Will complaining that he was having difficulty casting a boy in one of his films 'The Pursuit of Happyness', Jaden said: 'I could play that role!'

"Will said: 'You'd have to audition,' so he did and got the role, and now he's done two movies."

Jada insists Will (40) is a fantastic father to their two children and his 16-year-old son from a previous relationship.

She added to Parade.com: "Will was at home this week doing the daddy thing... he's a great daddy."