In 1999, Humphrey Bogart (1899–1957) was voted the greatest screen legend—male screen legend, that is—by the American Film Institute (AFI). Bogart (who is my favorite movie star) was a stage actor at the beginning of his career. His movie credits include The Maltese Falcon (1941) and Casablanca (1942). Correct+
In 1951, he won an Oscar for his role in The African Queen. In this award-winning role, he played opposite Katherine Hepburn who, by the way, was the AFI pick for the greatest female screen legend.