CHICAGO (AP) — Roger Ebert, the most famous and most popular film reviewer of his time who became the first journalist to win a Pulitzer Prize for movie criticism and, on his long-running TV program, wielded the nation’s most influential thumb, died Thursday. He was 70.

Ebert, who had been a film critic for the Chicago Sun-Times since 1967, died early Thursday afternoon at the Rehabilitation Institute of Chicago, his office said. He had announced on his blog Wednesday that he was undergoing radiation treatment after a recurrence of cancer.