She is fast approaching the age where she will soon become interested in boys - if she isn’t already yet.But the prospect of Willow Smith fraternising with the opposite sex is looking pretty grim if her father has anything to do with it.The "Men In Black 3” star has revealed that he has banned his daughter from dating until she is 40.And when he does eventually let Willow date, The "Fresh Prince of Bel Air” star is vowing to delve deep into their pasts.Will, 43, said: ‘When Willow does bring a boy home, I’m going to screen him and find out everything about him’’.No doubt Will, who honed his boxing skills to star as legendary heavyweight Muhammad Ali, will be dusting down his gloves to work on his shots just in case. The Sun