Yes Lambert is in the film. He plays the part of happystar a deranged Freddie fan who keeps posting utter shit on websites and refuses to believe that the members of the band have any right to perform after Freddie's death.
In the film Marc Martel plays Adam Lambert a guy who Queen choose to work with in the future, he teams up with Brian and Roger to capture the happystar character wrap him in Gaffa tape and force him to witness every show on the forth coming tour before bundling the insane goof into a home made rocket that Brian and his roadie Pete have built out of empty oil drums.
The film ends with happystar being blasted into space and Queen (or a version of) can complete their forth coming tour in the safe knowledge that Freddie will never be remembered as some half wits fantasy singer and the website happystar infested with hate can return to its path of open discussion.
Vocal harmony