Disney subsequently formed a new studio, Disney Brothers, which was the first cartoon studio in Hollywood and eventually changed its name to Walt Disney Productions. Disney was helped by the tutelage of Winkler, who insisted on editing all of the "Alice Comedies" episodes herself. One of her suggestions was the addition of a suspiciously Felix-like character called Julius. This was apparently the "straw that broke the camel's back" for Sullivan, who signed with rival distributor E. W. Hammons of Educational Pictures in 1925.