Newcomer Mae Schenk is readying to check into the Plaza hotel. She’ll star in the live action “Eloise” film, based on the beloved children’s book about a mischievous young girl who lives on the “tippy-top floor” of the iconic New York City landmark.

“Eloise has been beloved for generations, from when she was first published in the 1950s through to today, when no family trip to New York City is complete without a stop at The Plaza,” said Hannah M...