Possible Clues:

• Reviewer from Chicago
• Movie maven Roger
• Roger with a respected thumb
• 'Sneak Previews' co-host, 1975-1982
• Roger ___, first film critic to win a Pulitzer for criticism
• Roger of film criticism
• Roger with a thumbs-up or thumbs-down
• Half of an old movie duo
• Who said 'No good movie is too long, and no bad movie is short enough'
• 'It's hard to explain the fun to be found in seeing the right kind of bad movie' writer