LONDONJames Bond has completed another difficult mission in Blighty on Sunday when “Skyfall” became the first film ever to make £100 million ($160.9 million) at the U.K. and Ireland box office. Director Sam Mendes’ “Skyfall,” the 23rd official 007 film, beat “Avatar” to become the highest grossing movie of all-time in Blighty on Dec. 4. “Avatar” fell just £6 million ($9.6 million) short of the elusive £100 million barrier. The achievement closed a rollercoaster year at the U.K. box office, which started strongly against 2011 only to lose ground over the summer months, tracking down on the previous year from July through September. A strong final quarter, fuelled by “Skyfall,” saw the 2012 receipts finish 3.5% up on 2011 with $1.88 billion.