Wholly daft, but pretty enjoyable. I found the central relationship a bit cringy/desperate, but Mary Louise Parker is always great to watch. Malkovich is pleasingly bonkers, while Freeman, Mirren and Dreyfuss are criminally underused.
Karl Urban is quite the charismatic screen presence - he's shaping up into a talent to watch out for.
On the whole, this is silly but entertaining. At least it tries to address the issue of getting older in modern society, even if it does choose to go about it in a odd way. Bruce Willis may be old, but he can still pull the young chicks. Eww.
[Mirren's gentler, older romance is much more believable. But then, she's x50 the actor that BW is. ]