After moving to RKO Pictures in 1933, Nicholls shortly began directing films by the end of the year.
When he moved to RKO in 1933, he began using the original spelling of his last name, and became known as George Nicholls Jr. His first film at his new studio was Sweepings, directed by John Cromwell.
[3] By the end of the year he was tapped to be an associate director to Thornton Freeland on Flying Down to Rio, the first film to team Fred Astaire with Ginger Rogers.
[4] The following year he would make his directorial debut, co-directing Finishing School with Wanda Tuchock (who was also directing her first film).
[5] For the remainder of the decade, he worked consistently as a director at RKO, although occasionally loaned out to other studios such as Republic and 20th-Century.