was the last film ever released on radio?
Yes, on Star Playhouse
Twentieth Century (film)
"Twentieth Century" was presented on "Star Playhouse" November 22, 1953. 
who was john barrymore? American actor what are some of his notable films? Sherlock Holmes (1922), The Sea Beast (1926), Twentieth Century (1934) who restored the first film? George Eastman House
wiki:19536399
Twentieth Century (film) [SEP] Radio
"Twentieth Century" was presented on "Star Playhouse" November 22, 1953. The adaptation starred Lilli Palmer and Rex Harrison, who were married in real life.