Dennis Hopper, Tricia Helfer, J.K. Simmons, and Scott Caan have joined writer/director Jonathan Sobol for A Beginner’s Guide to Endings, a dark comedy about three brothers attempting to correct a lifetime of errors after they discover their days are numbered. According to The Hollywood Reporter, Caan will play one of the brothers, Helfer is the girlfriend, and Hopper and Simmons portray the brothers’ father and uncle, respectively. Production is scheduled to begin next month in Niagara Falls, N.Y., Sobol’s hometown.