Teams must duplicate the classic DeLorean car from Back to the Future - the real thing present for reference. Next, they re-create an iconic moment in cinema in a vignette on their tables, with the least impressive team saying farewell.

Three teams battle it out in the grand finale. With 28 hours to build, they can now create their ultimate masterpiece. Judged by public vote, Brickman and a top Lego designer.