Barbra Streisand turned to her son when deciding whether to star in new movie The Guilt Trip because he is one of the few men in her life who is not afraid to give her his honest opinion.

The legendary singer/actress trusts her 46-year-old son Jason Gould implicitly, so she followed his advice when he urged her to sign up for the road-trip comedy opposite Seth Rogen.

She tells Britain's The Independent newspaper, "Actually, he was very important in my decision to make The Guilt Trip because he was in bed recovering from back surgery when I brought the script over. It was interesting because actually his father (actor Elliott Gould) was in the room too. Isn't that funny? So we were both there, coddling our son, and Jason said, 'I think you should do it, Mom.' I really trust his integrity and his opinion. He has great taste, and whatever he chooses to do, it's amazing, so he clinched the deal."

Streisand, who divorced Jason's actor dad Elliott in 1971, admits the script's mother-son theme hit home for her.

She adds, "Sometimes you resent the people you love and need the most. Mothers do develop guilt trips. When I was working a lot, I felt guilty as a parent. I couldn't pick up my son every day from school, bake him cookies and that kind of thing. So I know that feeling a lot, where you try to compensate.

"Having a famous parent is an odd thing, so I thought it was interesting to investigate this; trying to be my son's friend versus a mother and when it comes time to really say, 'You abuse me, you disrespect me; you talk back to me; you don't honour what I say, you won't take my advice', that kind of thing, in terms of this movie it hit on all those things that I thought I could explore."