The Truman Show has genre Sci-Fi. Sci-Fi has examples: Journey 2: The Mysterious Island
[Human]: Do you have any recommendations for movies like The Truman Show? [Assistant]: For Sci fi I recommend Journey 2:The Mysterious Island,or the Matrix.  [Human]: I have never seen Journey 2:The Mysterious Island. Who's in it? [Assistant]: Josh Hutcherson, Dwayne Johnson and Kristin Davis. [Human]: Oh okay. I'm not a big fan of Kristin Davis. I think I'll go with the Matrix. Thanks! 
She has a very small role in the movie. It's mostly The Rock and Josh. You are welcome. 