Eddie Redmayne and Felicity Jones's latest film drew crowds of film fans to Leicester Square.
The Theory of Everything tells the story of the student years of physicist Stephen Hawking.
The stars of the film were on the red carpet ahead of its premiere, including director James Marsh.
Felicity Jones told us how her theatrical background helped her performance and why she gave a kiss to Stephen Hawking.
Among the stars was the Duchess of York who revealed to London Live her plans to produce a new film.
Simon McBurnley played the role of Stephen Hawking's father.