Mahin wrote '' The Last Gangster '' ( 1937 ) , then did two Gable films , '' Test Pilot '' ( 1938 ) , and '' Too Hot to Handle '' ( 1938 ) and did uncredited work on '' The Wizard of Oz '' ( 1939 ) .
Mahin wrote '' The Last Gangster '' ( 1937 ) , then did two Gable films , '' Test Pilot '' ( 1938 ) , and '' Too Hot to Handle '' ( 1938 ) . 
 With Fleming , Mahin did uncredited work on '' The Wizard of Oz '' ( 1939 ) and worked for about a week on '' Gone with the Wind '' ( 1939 ) .