Who Killed Doc Robbin is a 1948 film directed by Bernard Carr and starring Larry Olsen, Billy Gray, and Renee Beard.
When Hal Roach sold Our Gang to Metro-Goldwyn-Mayer in 1938, he was contractually bound not to produce anymore kids comedies.
When Roach decided that he wanted to produce Curley, he got MGM's permission by giving up his right to buy back the name Our Gang.
Both Curley and Who Killed Doc Robbin, performed poorly at the box office (as a result, Roach discontinued theatrical film production, turning his studio's efforts towards television), and when Roach bought back the rights to the 1927-1938 Our Gang shorts in 1949, he had to re-christen the series as The Little Rascals.
Curley and his "gang" happen to have been key witnesses to several of the events, and the children's testimonies are told in flashback during the court case.