The first trailer for the 23rd James Bond movie Skyfall has been unveiled. The one minute 24 second teaser (seen above) shows British spy James - played by Daniel Craig for the third time - being interrogated by agents, before scenes showing him shooting a gun and a number of coffins with the Union Jack flag draped on them. There are also scenes from an exploded house and M - portrayed by Judi Dench - also appears briefly.

M is set to be the focus of the movie, which will tell the tale of her past coming back to haunt her.

Among the unusual storylines expected in the Sam Mendes-directed film is one where James Bond is knighted by Queen Elizabeth, who may even make a cameo in the picture.

"Daniel Craig was here in black tie one morning in early April. Dame Judi Dench was also here, and the talk of the Palace was that Bond was going to be knighted that morning," one source said.

It has previously been claimed Bond arrives at the palace in London after a request from the queen, who then asks him to open the Olympic Games. He is then taken by helicopter from Buckingham Palace to the Olympic Stadium in Stratford, East London.