Walt Disney Studios began in the 1920s and has produced animated feature films since the 1930s. Their animation style is characterized by round, soft characters with exaggerated motions. Disney had early success with Mickey Mouse and Snow White but struggled in the 1970s. The studio was revived in the 1980s and transitioned to computer animation around 2006. Current projects include Frozen and Big Hero 6. Key people who shaped Disney animation include Walt Disney, the Nine Old Men animators, and John Lasseter who oversaw the transition to CGI.