Given an open-ended topic (movie name, a persons name, an event, sports, etc) generate a simple trivia-type question.

constantine xi palaiologos
Constantine XI Palaiologos was the last ruler of which empire?

atlanta
Atlanta is the capital of which US state?

at the movies

Known for their thumbs up/thumbs down review summaries, who hosted Sneak Previews (on PBS) and later At the Movies, along with Rogert Ebert, until his death in 1999?