did the former brother build any themed park?
Yes, Disneyland.
Walt Disney
Construction work started in July 1954, and Disneyland opened in July 1955; the opening ceremony was broadcast on ABC, which reached 70 million viewers. 
who did the voices in the lion king Matthew Broderick, James Earl Jones, Jeremy Irons, Jonathan Taylor Thomas, Moira Kelly, Nathan Lane, Ernie Sabella, to name some. when was this film released? 1994 who directed it? Roger Allers and Rob Minkoff was it converted to 3d form? It was converted to 3D for a two-week limited theatrical re-issue and subsequent 3D Blu-ray release. which animation production company was the former director a part of? Walt Disney Animation Studios and what did he do after he was done working here? In May 2003, it was announced that Allers and Brenda Chapman would direct "Tam Lin" for Sony Pictures Animation. who established this last mentioned animation company? It is owned by Sony Pictures Entertainment. and about the former animation company; where is it located? It is headquartered in Burbank, California. who launched it? Walt Disney and Roy O. Disney are they brothers? Yes which disney productions was the latter brother part of? Walt Disney Productions
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Walt Disney [SEP] Theme parks, television and other interests: 1950–1966
Disney also oversaw aspects of the full-length features "Lady and the Tramp" (the first animated film in CinemaScope) in 1955, "Sleeping Beauty" (the first animated film in Technirama 70 mm film) in 1959, "One Hundred and One Dalmatians" (the first animated feature film to use Xerox cels) in 1961, and "The Sword in the Stone" in 1963.