The story follows Sam Witwicky (Shia LaBeouf), a teenager who unknowingly buys an Autobot —Bumblebee—as his first car.
Despite the heavy CGI, Michael Bay utilized extensive practical explosions and stunt work, such as tearing a real bus in half for the Bonecrusher battle scene. Plot Summary Transformers 1
The battle culminates in Mission City, where Sam ultimately uses the Allspark to destroy Megatron. Core Cast Actor / Voice Actor Sam Witwicky Shia LaBeouf Mikaela Banes Captain Lennox Josh Duhamel Agent Simmons John Turturro Optimus Prime (Voice) Peter Cullen Megatron (Voice) Hugo Weaving Commercial & Critical Reception Transformers (2007) - Plot - IMDb The story follows Sam Witwicky (Shia LaBeouf), a