The city is ours! Michael Douglas and Robert De Niro grin with glee after being given key to Las Vegas

There are few honours more flattering than being presented with a key to a city.
So no wonder Michael Douglas and Robert De Niro where so happy when they were given the ceremonial trinket in Las Vegas on Friday. 
The duo were joined by their castmates from the movie Last Vegas, which follows the adventures of four best friends in their late sixties who go on a wild stag trip to America's party capital.

Sin-sational: Mary Steenburgen, Morgan Freeman, Robert De Niro and Michael Douglas were given the key to Las Vegas on Friday

Old fellas: Bob and Michael play ageing friends who go to Sin City for a stag night in Last Vegas

Michael, 69, who plays the last of the quartet to be finally tying the knot, was in ebulient mood before the ceremony.
The jolly star gave high fives and swapped platitudes with fans as he walked down the red carpet to the famous Bellagio casino fountains.
Goodfellas star Bob, 70, also took delight in mingling with fans, though a glove wearing Morgan Freeman seemed less willing to get involved.
The trio were joined by fellow stars members Kevin Kline and Mary Steenburgen, with entertainment reporter Nancy O'Dell also putting in an appearance.

Slap happy: Michael revelled in giving his supporters high fives as he ran down the red carpet

Is that Danny Glover? While Bob acted like a friendly uncle to the crowd his co-star seemed to fear their germs

Fine fillies: Entertainment reporter Nancy O'Dell and actress Mary Steenburgen looked in fine figure

Grinning and bearing it: Old pro Mary pretended she was pleased to meet the tattooed ladies

Clark County Commissioner Steve Sisolak with a giant key to the Strip, while Mayor Carolyn G. Goodman also presented each of the cast with the key to the city of Las Vegas.
Last Vegas has been billed as The Hangover for pensioners, and it sees Michael's lifelong bachelor character embarking on a trip to Las Vegas with friends on the eve of his wedding,
The film, which is released on November 1, makes fun of the aging process in the trailer, with Freeman's character questioning how he can enjoy the pleasures of Sin City when, 'I can't smoke, drink, eat salt or stay out past 9.'

Needing a rest: The 69-year-old seemed very pleased to be sitting down after the ceremony

For the scrapbook: Bob will surely enjoy sharing this picture of the cast with his grandchildren

Is that the fountain of youth? Morgan looked very excited when the Bellagio water show started