We reported in 2019 that Joel Coen, one of the Coen brothers, was working on Macbeth, but without Ethan Coen, who is also a Coen bro. Although they had previously worked separately, it was not uncommon for one to be able to get the other. Professionally, the Coen brothers are known as the Coen Brothers because of this. However, Carter Burwell (composer of The Tragedy Of Macbeth) says that this Coen schism may not be an isolated one.AdvertisementBurwell, on a recent episode (via IndieWire), explained the split by saying Ethan Coen didn't want to make movies any more and that he was happy working on theatre productions and other nonmovie projects. Burwell says that Joel Coen will be making his Macbeth movie, and that they have written many scripts together. This is all so uncertain that he believes there may be a chance they all will retire soon.Ethan Coen has been known to want to stop making movies for a while. According to the Los Angeles Times in 2019, he said that almost literally. He explained that he wanted to make plays because he felt more at ease making movies than the theater.