From MovieWeb :

...According to Variety, Arrested Development's mother of the year Jessica Walters has just joined the cast of Henry Poole Is Here. ...

In Henry Poole Is Here, Walters will play the mother of Henry Poole (Luke Wilson), a man who believes he only has six weeks to live. Instead of doing something worthwhile, he sinks into the back of his couch with a bag of cheetos and says good-bye to the world. This life of debauchery leads to a confrontation with his neighbors. Cheryl Hines and Adriana Barraza also star. Mark Pellington is directing.