Dinner for 171! The Queen treats the Obamas to a state banquet... and invites a few of their Hollywood friends

<p>After a long day of public appearances, President Obama and US First Lady Michelle were treated to a state banquet at Buckingham Palace, hosted by the Queen tonight.<br /><br />The star-studded banquet saw 171 guests arrive, including Tom Hanks, Kevin Spacey and Tim Burton, who dined on lamb, roast potatoes and vanilla Charlotte.<br /><br />Also at Her Majesty&rsquo;s banquet in honour of the Obamas were David Cameron, Nick Clegg and Boris Johnson.</p> <p><span><img src="http://i.dailymail.co.uk/i/pix/2011/05/24/article-1390540-0C3F936000000578-428_964x546.jpg" alt="" width="964" height="546" /></span></p> <p><span>Earlier in the day the Obamas had visited Number Ten after laying a wreath on the tomb of an unknown soldier at Westminster Abbey.<br /><br />It is the couple&rsquo;s first state visit to Britain and are staying at Buckingham Palace, instead of having to face an ordinary five star hotel.<br /><br />They arrived last night after their visit to Ireland and will spend tonight and tomorrow night in the luxurious Belgian Suite of Palace, which is the same suite Prince William and Kate spent their first night as a married couple.<br /><br />Despite not attending the Royal Wedding last month, the President and his wife met up with Prince William and his new bride today and talked for around 15 minutes with the newly-weds.<br /><br />On the Obama&rsquo;s arrival, they were greeted with a 41-gun salute alongside The Queen, Prince Philip, Prince Charles and Camilla, Duchess of Cornwall.</span></p>