HOLLYWOOD – James Franco’s father reveals the secret of his youth.

The family resemblance is obvious but what many people don’t know is that Dave Franco is actually James Franco’s father! Dave Franco – who is also an actor starring in such films as 21 Jump Street and Nerve – spoke EXCLUSIVELY about his relationship with his son.

Many people think we’re brothers and I take that as a real compliment but the truth will out.

But you actually look younger than James.

I wouldn’t want to say anything about James’ lifestyle choices, not to the press anyhow. But all I can say for myself is lots of grapefruit juice and Pilates.

So that’s your secret?

It’s no secret, but that’s what I do.

And the acting is a family tradition.

I saw James do Spider-man 2 and I just thought, he’s great and it looks so easy. Why don’t you move over and let your old man take a shot? We have a rivalry and James will often retreat to his room sobbing. He was in there for weeks after Pineapple Express. But we also give each other advice and help each other out.

What does his mother think of all this?

She’s super-psyched. In fact she’s got into things too, but she’s using her maiden name. Including Spanish fascists, way too many Francos!

What’s her name?

Rooney Mara.

But she’s really young. She can’t possibly be…

Now I can’t give away her secrets, but carrot juice and yoga.

Nerve is in theaters now.