Melissa McCarthy is lining up quite an impressive cast for Tammy, her first movie as director. Variety reports that Dan Aykroyd and Allison Janney are both in talks to join the cast, which also includes McCarthy, Mark Duplass, Susan Sarandon, and Kathy Bates. Tammy will mark the first movie as screenwriters and directors for McCarthy and husband Ben Falcone, who are serving as co-writers and co-directors on the project. The film follows a woman named Tammy (McCarthy) who hits the road with her profane, alcoholic grandmother (Sarandon) after finding out her husband is cheating on her and quitting her fast food job. Aykroyd is in negotiations to play the father of Duplass’s character, a man Tammy meets on the road and develops a strange relationship with, while Janney will play McCarthy’s mother. Anything that keeps Aykroyd away from tinkering with Ghostbusters III is definitely a good thing, especially a movie that actually sounds legitimately good.