Cinema-goers in central London were given a shock this week when Prince William and Kate Middleton joined the queue to watch the new Avengers movie. The royal couple headed to the Odeon in Kensington on Thursday evening to catch the film as part of a romantic date.

But anybody expecting to witness the pair in their royal finery would have been disappointed, as the Duke and Duchess of Cambridge dressed down for the occasion in a bid to disguise themselves among the crowds.

William wore a baseball cap, a blue jumper and shirt and glasses, while Kate stepped out in a denim jacket and tight jeans.

One person, also at the cinema to watch The Avengers, took to Twitter to reveal the royal presence, writing: 'OMG watching the Avengers with Kate middleton and Prince William sitting right next to me!!!!!'