Will Smith finds it ''scary'' how little his son Jaden Smith thinks of other people's opinions.

The 'Suicide Squad' star is proud of how the 18-year-old actor wears whatever he feels comfortable in, including skirts and nail polish, and admits he has never come across anyone so confident in themselves.

He said: ''I don't know if I've ever met anybody who legitimately doesn't care what people think of them as much as Jaden. It's scary as a parent sometimes, but he's willing to do whatever he feels.''

Will was joined by Jaden at the world premiere of 'Suicide Squad' in New York City on Monday (01.08.16) evening, and the 47-year-old actor - who also has son Trey, 23, from a past relationship and

daughter Willow, 15, with wife Jada Pinkett Smith - revealed the 'Get Down' star thinks the ensemble blockbuster is the best work his dad has ever done - and is ever likely to do.

He told 'Extra': ''He called me and said, 'Don't ever have to work anymore.' He said, 'It's done, you're never gonna do anything as good as 'Suicide Squad.' It's all downhill for you from here.' ''

Jaden recently admitted he has the confidence to carry off some of his more outrageous fashion ensembles because of his own belief in himself.

He said: ''You just have to believe in yourself, you know.

''The world is going to keep bashing me for whatever I do, and I'm going to keep not caring. I'm going to keep doing the same things - I'm going to keep doing more things.''

And the teenager hopes that his fame can help to remove the stigma around gender fluidity.

He explained: ''So, you know, in five years when a kid goes to school wearing a skirt, he won't get beat up and kids won't get mad at him. I'm taking the brunt of it so that later on, my kids and the next generations of kids will all think that certain things are normal that weren't expected before my time.''