My sister is this way, too, and from watching her in action, I know how much energy and time it takes to act like glue, to make the efforts that allow people to stay close.

FORBES: The Quality Of Keeping People Together

In a bit of counter programming, Warner Bros. is releasing My Sister's Keeper this Friday in a bid to capture some of the female audience who have no interest in robots that turn into cars.

FORBES: Popcorn Prognosticator

Nora Ephron made her directorial debut with the 1992 comedy, "This Is My Life, " which she co-wrote with her sister, Delia.

CNN: Nora Ephron, prolific writer and filmmaker, dies at age 71