Hamill recently shared it himself, revealing some details that might not be known to every fan.
The clip shows a very young Mark Hamill and Harrison Ford together.
Recently, an early screen test from the movie that would come to be known as Star Wars: A New Hope has been making its way around Twitter.
The two actors had never met each other before sitting down to do their screen test, and neither had any clue what the movie they were auditioning for was really all about.