The set-up is obliviously hilarious: the opening ten minutes are a monochrome rip-off/reprise of The Right Stuff, with 1950s fighter-plane test pilots hurtling to the outer limits of the atmosphere, before being leapfrogged into space by a monkey. Fast forward 40-odd years. The Cold War is over and NASA is enlisted to repair an obsolete Soviet satellite before it falls to earth. But the design is so archaic, none of today's computer nerds can figure it out. Hence a call-up for the old coots. By any sane criteria this would be considered an insult to audience intelligence, but in the context of contemporary blockbusters, you'd have to say it's all in fun. And it is fun: tongue in cheek but straightfaced enough to have you pulling for them. Messrs Garner and Sutherland don't have much to do but make the most of every scrap they get, while Clint generously cedes the lion's share of the big emotional scenes to Tommy Lee, who ropes them and rides them home. They puff around the running track, cheat on the physicals, override the automatic pilot - override pretty much everyone and everything that gets in their way, in fact - and show the new pups some old tricks. If the purpose of the exercise was to prove that the codgers can still get it up, then Mission Accomplished.