Holy Mother of God! All solved in under 90 minutes!
1. Daughter of Barbara Harris. Mother of Tom Felton. Sister of Rob Lowe.
Jodie Foster in Freaky Friday, Anna and the King, and Hotel New Hampshire.
Solved by maurinsky (comment #8).
2. Father of Seth Green. Brother of Jeff Bridges. Husband of Sally Field.
Beau Bridges in Hotel New Hampshire, The Fabulous Baker Boys (and real life) and Norma Rae.
Solved by Melville (comment #6).
3. Husband of Julianne Moore. Uncle of Barry Gordon. Boss of Dustin Hoffman.
Jason Robards in Magnolia, A Thousand Clowns, and All the President’s Men.
Solved by Melville (comment #4).
4. Wife of Christopher Walken. Employee of Yaphet Kotto. Lover of Christopher Reeve.
Jane Seymour in Wedding Crashers, Live and Let Die, and Somewhere in Time.
Solved by Evn (comment #5).
5. Lover of Christopher Reeve. Rival of Laurence Olivier. Employee of Christian Bale.
Michael Caine in Deathtrap, Sleuth (the original) and Batman Begins.
Solved by Evn (comment #1).
6. Employee of Hugh Grant. Niece of Stockard Channing. Daughter of Ellen Burstyn.
Sandra Bullock in Two Weeks Notice, Practical Magic, and The Divine Secrets of the Ya-Ya Sisterhood.
Solved by Evn (comment #1).
7. Father of Teresa Wright. Husband of Janet Gaynor. Fiance of Susan Hayward.
Frederic March in The Best Years of Our Lives, A Star Is Born (the original) and I Married a Witch.
Solved by Melville (comment #4).