No doubt about it: Jaden Smith is his famous daddy’s son.

DNA testing isn’t necessary with this Hollywood progeny. The way Jaden Smith cocks his head, peers into the distance and makes wisecracks cooler than they’re written in the script is Will Smith all the way.

The question is whether the 11-year-old star of “The Karate Kid” can match Dad’s successful summertime track record at the box office.

Growing up as a movie icon’s child can be tough, especially if the resemblance is as uncanny as the Smiths’. They’re expected to follow in their parents’ red-carpet footsteps, expected to be equally talented. It doesn’t always work out that way, and gossip rags are dotted with disenchanted or disinherited celebrity children.

But now and then, the acorns don’t fall far from family trees.

Here are six acclaimed Hollywood stars and their offspring, who have either matched their parents’ acting skills or appear primed to do so one day.

Tom and Colin Hanks

The similar tilt of their heads like dogs sniffing trouble, the earnest eyes and resolute jaw line. Both actors exude integrity.

Keeping it in the family: Father and son appeared together in “The Great Buck Howard,” as the naive assistant to a bumbling illusionist (John Malkovich) and his disapproving father.

Wouldn’t you love to hear Colin say: “Aww, come onnnnnn!”

Goldie Hawn and Kate Hudson

Those saucer eyes and pouty lips.

Keeping it in the family: They haven’t worked together yet, but Kate’s “Cinema Italiano” number in “Nine” is pure Goldie.

Wouldn’t you love to hear Kate say: “See, I did join the Army, but I joined a different Army. I joined the one with the condos and the private rooms.”

Michael and Kirk Douglas

Those identically cleft chins.

Keeping it in the family: Believe it or not, this father and son appeared together only once in a movie, 2003’s “It Runs in the Family.”

The film also starred Douglas-clan black sheep Cameron, Michael’s son, who is currently serving a prison term for narcotics charges.

Wouldn’t you love to hear Michael say: “I am Spartacus!”

Martin and Charlie Sheen

That Kennedyesque hair, those piercing eyes and a whiff of artistic arrogance.

Keeping it in the family: Although their relationship is often strained, the Sheens enjoy teaming in movies, notably “Wall Street,” in which they played father and son, and the elder Sheen’s cameo in “Hot Shots, Part Deux” poking fun at Oliver Stone’s movie.

Wouldn’t you love to hear Charlie say: “Saigon ... I’m still only in Saigon ... Every time I think I’m gonna wake up back in the jungle.”

Vanessa Redgrave and Natasha Richardson

Those regal cheekbones and melodic English accents.

Keeping it in the family: Mother and daughter co-starred twice, in “The White Countess” (2005) and “Evening” (2007).

Wouldn’t you love to hear Natasha say: Sadly, Richardson’s 2009 death after a skiing accident robs us too early of her voice and talent.

Meryl Streep and Mamie Gummer

The luxurious slope of their noses, and small eyes soaking up everything.

Keeping it in the family: Mother and daughter played the same character at different ages in “Evening.”

Wouldn’t you love to hear Mamie say: “Details of your incompetence do not interest me.”