Hollywood Is No Place for a Child. I Would Know.

Ms. Pill, who starred in “Scott Pilgrim vs. the World” and “The Newsroom,” began acting professionally at the age of 11.

I didn’t know Hayden Panettiere very well at all. Our paths crossed only briefly on a TV show and even more briefly at Los Angeles International Airport in 2005 or so, just before we worked together. I remember nodding at her and saying hi at a magazine shop. I was traveling with my friend and fellow former child actor Anna Paquin. Anna asked later if I knew her. I didn’t, but I recognized her, or thought I did.

Whether........

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