Cameron Diaz is back in action, in "Back in Action," after a decade-long retirement from acting. And would you look at this cast? Diaz, Jamie Foxx, Glenn Close, and Kyle Chandler. Stellar.

Belarusian bad guys show up at their house and start shooting, because on their last spy mission, Matt stole a cyberterrorist weapon, hid it at his estranged mother-in-law Ginny's house (Glenn Close), and lied about it for 15 years. The bad guys want the weapon, because it's a special kind of MacGuffin-key-thingie, that, like most MacGuffins do, gives you access to everything, everywhere.

Emily's mom Ginny (a retired M16 spy) lives in England. Matt and Emily grab the kids and decamp to Ginny's place, although they can't stand her. She's got a boyfriend, Nigel, a third her age (Jamie Demetriou) who hangs around her country mansion, apparently getting instruction in spy tradecraft from his sugar mommy.

Nigel would appear to be intended as some kind of side-dish of comic relief in a comedy-action flick, in case the main course isn't amusing enough. When meeting Foxx and Diaz's children, he spouts words to the effect of, Wow, I love kids. Let me just plop this on the table like a hot jelly on Christmas morning -- would you like to call me Grandad? With his barely contained hysteria and flapping, Nigel would not appear to be cut out for spy work. Nor does he appear to be cut out to be the boyfriend of an elderly female -- or any female, for that matter.