It's a tall order but Liam and Natasha get in on the act

What, you might well enquire, have Hollywood movie stars Liam Neeson and Natasha Richardson got to do with the launch of the world's tallest residential building?

Stunning in a brown-lacy mini and thigh-high brown suede boots and with the smooth unlined skin of a woman half her age, the 44-year-old actress caused a flurry of excitement amongst photographers yesterday as she stalked into the marquee in Fitzwilliam Square in Dublin, erected for the launch of the Chicago Spire project.

All bouncing blonde curls, she graciously accepted the gushing compliments over her appearance, generously revealing that her outfit was by the American designer Michael Kors as her husband jokingly demanded: "What am I, a piece of s**t?"

Ireland's tallest actor looked good too -- though we weren't sure if blond was exactly his colour. Perhaps he had dyed his hair for his new role in 'The Other Man' alongside Juliette Binoche.

An unseemly amount of time seemed to pass as the couple obliged photographers by posing alongside a large model of the 2,000-foot tall structure, currently being built on the shores of Lake Michigan in central Chicago and which will be the tallest residential building in the world, as well as the tallest structure in North America or Europe.

It will house almost 1,200 "exclusive residences", of which no two will be alike, over 150 storeys. Prices will range from €500,000 to €28m for the largest two-floor penthouse.