Cameron Diaz thinks ex-boyfriend Justin Timberlake is "weird".

The 38-year-old star -- who called time on her three-year relationship with the singer-and-actor in 2006 -- admitted the pair had a "good laugh" working together on new movie 'Bad Teacher' but she thinks her former flame is "bizarre".

She told NBC News: "Justin and I have always had a good laugh together, and to make a movie where we get to have a laugh together, and there really was no one else who was more perfect for this part. Justin is a genius comedian.

"We went for the best person for the job, and it just so happened that it was him. And he delivers. He's frickin' weird in movies. He's so bizarre and hilarious. I say that with great respect to his character and what he's done!"

Despite Cameron currently being in a relationship with New York Yankees baseball star Alex Rodriguez, she recently confessed to a love of hotel porn.

She explained: "I love porn! You know what I love about hotels? How discreet they are.

"I love that they always give you that little thing at the bottom -- 'Your room will be charged the same as any other room, no titles will be used.' It's great."