Diane Lane and Josh Brolin

Actors Diane Lane (L) and Josh Brolin arrive at the Hollywood Film Festival's Gala Ceremony, held at Beverly Hilton Hotel on October 27, 2008 in Beverly Hills, California

Barbra Streisand and James Brolin

Barbra Streisand;
James Brolin (1 July 1998 - present)
Elliott Gould (21 March 1963 - 9 July 1971) (divorced) 1 son.

Mother of actor,writer, producer Jason Gould.
Sister of Roslyn Kind.

Stepmother of Josh Brolin.

Godmother of Caleigh Peters.

Diane Lane and Josh Brolin

Josh Brolin (14 August 2004 - present)
Christopher Lambert (29 October 1988 - 1 March 1994) (divorced) 1 child; their daughter (actress) Eleanor Lambert born on 1993.

Daughter-in-law of James Brolin.

Daughter-in-law of Barbra Streisand.
Stepmother of Josh Brolin's children ( actress) Eden and Trevor from Brolin's first marriage to actress Alice Adair.

Best friend of Elizabeth Perkins.

Her parents are acting coach Burt Lane and nightclub singer/centerfold Colleen Farrington.

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Josh Brolin, son of actor James Brolin and Jane Cameron Agee (died 1995).

Stepson of Barbra Streisand.