According to Mark Meets.
theTwilight Saga: Breaking Dawn Part 1 Los Angeles premiere is rumored to be set for Monday November 14th.
This has not been confirmed by Summit.
"The World film premiere of Twilight Breaking Dawn Part 1 will take place in Los Angeles on Monday 14th November 2011. the US red carpet will see many of the main cast attending.
There currently is no London film premiere booked, should there be one planned it will take place between 15th and 17th November 2011 and we’ve been told from the organisers that Battersea evolution (where the New Moon fan event took place) would not be a suitable venue. We have been asked to state that no-one books flights/hotel for the UK premire as negotiations are still taking place."
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via : breakingdawnmovie