Puffin beefs up Wimpy Kid

<p>Puffin Books has secured the rights to<em> The Wimpy Kid Movie Diary</em> with a global publication date of 17th March. </p><p>The book is a&nbsp;full-colour diary that goes behind the scenes to tell the story of Greg Heffley&rsquo;s transition&nbsp;from cartoon character to real person on the big screen and is a companion to the series.</p><p> The film will be released in the US on 19th March but a UK date has not been confirmed. </p>