Disney have culled the word "Fox" from their 20th Century Fox film studio in an apparent bid to distance it from operations of the previous owner Rupert Murdoch, reports the BBC.
US media suggests Disney does not want to it to be associated with the media mogul's highly partisan, right-wing Fox News network, it said.
Disney, which bought the studio with other media operations in a $71 billion deal last March, however, has not clarified its reasons.
20th Century Fox is known for producing some of the biggest films of all-time, including "Avatar" and "Titanic".
Variety magazine, which broke the news, said it had spoken to an unnamed Disney source, who said: "I think the Fox name means Murdoch, and that is toxic."
Hollywood is known for being liberal, unlike the Australian tycoon, according to the BBC.
Disney has also renamed Fox Searchlight Pictures, the arthouse arm, as Searchlight Pictures, the report said before adding staff emails have been changed from @fox.com to @20thcenturystudios.com or @searchlight.com.
The original 20th Century Fox company was formed in 1935 following a merger.
Rupert Murdoch's News Corporation bought it in the mid-1980s, and the Fox News channel was created in 1996, growing to become most-watched in the US.
News Corporation was later split into News Corp and 21st Century Fox - which Disney acquired as the parent company of various film and television studios, including the renowned 20th Century Fox.
The Murdoch family retained the news outlets in a spin-off company, Fox Corporation, which is run by Rupert's son Lachland.
The 20th Century Fox studio's well-known theme and searchlight logo will be retained, according to the report by Variety magazine.
Disney also runs 20th Century Fox Television and Fox 21 Television Studios, but any changes to their names have not been announced.
Disney is already a dominant force in US news, as the owner of the ABC network. It is also hoping to challenge Netflix with its own streaming service Disney+, which launched in the US last year.