Indie Lens Pop-Up and Cranberry Public Library will host an event featuring a shortened, preview version of “Free for All: The Public Library,” which will be followed by a panel discussion with library staff.

“Free for All: The Public Library” tells the story of the quiet revolutionaries who created a civic institution where everything is free and the doors are open to all.

The event will take place from 6 to 7:30 p.m. Monday, April 7, at the Cranberry Public Library, 2525 Rochester Road, Cranberry Township.

The event is free, but registration is required by visiting cranberry.librarycalendar.com or calling 724-776-9100.