These March movies are based on books:
American Sniper: based on the memoir American Sniper by late US Navy SEAL Chris Kyle. (e-book available).
“Chris Kyle’s father personally told Clint Eastwood and Bradley Cooper that he would “unleash Hell” if his son’s memory was disrespected in this film. He also said that Eastwood and Cooper were “men he could trust.” (IMDb)
Still Alice: based on the novel Still Alice by Lisa Genova.
“Co-director Richard Glatzer suffers from ALS and can’t speak. He directed the film using a text to speech app on an iPad. Both Moore and Stewart dedicated their “Ice Bucket Challenge” to Glatzer.” (IMDb)
Suite Française: based on the novel Suite Française by Irène Némirovsky. (e-book available)
“[Margot Robbie] [a]uditioned for Susan Storm/The Invisble Woman in Fantastic Four (2015) which went to Kate Mara.” (IMDb)