Tom Cruise was on top of the world in London Sunday night — or at least on top of the BFI Imax cinema.

Impossible – The Final Reckoning London premiere - The film marks the eighth, and possibly final, instalment of the action spy franchise, with other stars of the film expected on the red carpet

Tom Cruise is in London to receive the honorary BFI Fellowship. On his trip, however, he appears to have made time for a leisurely stroll up one of the city's most iconic buildings. On Sunday afternoon,