Kevin Kline is joining Robert De Niro, Morgan Freeman and Michael Douglas as the fourth buddy in the CBS Films and Good Universe comedy about old friends who decide to throw a Las Vegas bachelor party for the only one of them who has remained single, Deadline said.

Jon Turteltaub is directing Last Vegas from a screenplay by Dan Fogelman, with production set to start in the fall.

Laurence Mark and Amy Baer are producing, with Good Universe’s Nathan Kahane executive producing with Lawrence Grey. Matt Leonetti will co-produce. Kline most recently appeared in Lawrence Kasdan’s Darling Companion, and also is circling a role in Charlie Kaufman’s Frank Or Francis.