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Star Trek stars relieved to talk about film's secrecy

9 May 2013 Last updated at 11:31 BST

The stars of Star Trek Into Darkness say they are relieved to finally be able to talk about the film after having to remain tight-lipped throughout the filming.

The follow up to J.J. Abrams' Star Trek reboot has been shrouded in secrecy with the film's producers going to great lengths to keep storylines under wraps.

Zoe Saldana, Zachary Quinto and Simon Pegg explain why there was so much secrecy and the strict rules they had to abide by.

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