‘Last Vegas’ Adding Funnyman Kevin Kline to the Cast

Who wants to see a bunch of old dudes party like it's 1999 on the big screen? We do! And the gathering is going to happen sooner rather than later for the upcoming geriatric 'Hangover'-type comedy 'Last Vegas.'

According to Deadline, Kevin Kline is in talks to join the comedy about a group of guys who throw one last bachelor for their only single friend in Las Vegas.

Robert De Niro, Morgan Freeman and Michael Douglas will be playing the other friends. According to earlier reports, Douglas' character is getting married to a much younger woman and wants one final sendoff from bachelorhood.

'National Treasure' helmer Jon Turtletaub will be directing for CBS Films from a script by Dan Fogelman. Laurence Mark and Amy Baer are set to produce. The movie is expected to start shooting in the fall.

We don't know if this will be a rated 'R' affair to follow in the footsteps of 'The Hangover' or if it's going to go for a more friendly PG-13 rating. Hopefully they pull out all the stops and give this one an 'R.' It would be pretty funny to see what kind of situations these guys get themselves into from a script with no restrictions. We'll keep you updated.