Cameron Diaz sought marriage advice from Drew Barrymore

A source told US' OK! magazine: "Drew said Cam should let Benji know he’s the most important man in her life and keep his ego padded.

"She’s taking Drew’s advice seriously. She wants to stay happily married."

And it appears the 42-year-old star is sharing her newfound marriage tips with her brother-in-law Joel Madden, who is believed to be having trouble with wife Nicole Richie.

An insider said previously: "Joel is determined to fight for Nicole. He's been leaning on Cameron, saying he doesn't want to give up on the marriage. He says he'll do whatever he can to prove his devotion to her and their family."

Cameron is said to have been "begging" Nicole to work on her marriage with Joel and has offered her a place to stay whilst she considers what to do.

An insider also claims Nicole has been telling people she has been drifting apart from the 'Girls & Boys' hitmaker for sometime now.