David Cameron, Barack Obama, Angela Merkel, Francois Hollande and John Kerry have all posed for selfies.
Connelly announces pregnancy
Jennifer Connelly and Paul Bettany confirm pregnancy news
Oscar winning actress Jennifer Connelly and husband Paul Bettany are expecting a second child.
Last week the couple attended the New York premiere of The Tourist , in which English actor Bettany plays Inspector Acheson.
Connelly and Bettany met on the set of "A Beautiful Mind " in 2000 and married three years later.
They already have a 7-year-old son called Stellan and Connelly also has a 13-year-old son called Kai from a previous relationship.
Ewan McGregor has told Sky News he was worried about tarnishing the reputation of the original Trainspotting with a bad sequel - but that all his reservations were forgotten after reading the scrip
Trainspotting was a seminal film of the Nineties.
Trainspotting's long-awaited sequel T2 has won over most critics' hearts, but expectations were far from great.
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