Reese Witherspoon has signed on to star in Daughter of the Queen of Sheba, a big-screen mother/daughter saga based on NPR correspondent Jacki Lyden's memoir of the same name. Meryl Streep has expressed interest in playing her manic depressive mom... Lily Tomlin has been named this year's recipient of the Mark Twain Prize for humorists... Rapper Camoflauge was fatally shot Monday while walking with his toddler son outside his Savannah, Ga., recording studio. He was 21. No arrests have been made.