Complex sentence: According to Robert Osborne, host of Turner Classic Movies, Gish prepared for the death scene by not drinking or eating for three days; when Vidor saw her condition, he worried that it might be Gish's death scene as well as Mimi's.
Split into simpler sentences: According to Robert Osborne, host of Turner Classic Movies, Gish prepared for the death scene by not drinking or eating for three days. When Vidor saw her condition, he worried that it might be Gish's death scene as well as Mimi's.