Labour MP Chuka Umunna has given Will Smith a tour of Lambeth today, saying that the Hollywood star wanted to see the "real London".
The pair called into a music venue and a coffee shop in Brixton before taking questions from students at St Martin-in-the-Fields High School for Girls in Tulse Hill.
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The operation carried out by Westminster City Council led to the seizure of £8,000 worth of cigarettes.
Armed troops have been stationed around Parliament to free up armed police to patrol the streets in the wake of the Manchester bomb attack.
Chelsea had planned an open top bus tour to show off the Premier League trophy and hope to add the FA Cup in Saturday's final with Arsenal.