He began his career playing small roles in short movies and movies as Ride, Cowboy, Ride (1939 short) and the classic movie starring by Clark Gable Gone with the Wind (1939), Reeves play of role Stuart Tarleton. In the 1940 Reeves continued to make appearances in movies such as Blood and Sand (1941) with Tyrone Power, So Proudly We Hail! (1943), Winged Victory (1944), Samson and Delilah (1949), and the Western starring by William Boyd Border Patrol (1943), Colt Comrades (1943), Bar 20 (1943). George Reeves gets his first starring role in 1948 movie Jungle Goddess (1948), he as Mike Patton an explorer to the rescue of a young woman who has been kidnapped by an African tribe. He also accompanied with Johnny Weissmuller, in the Tarzan saga Jungle Jim (1948).