(Cover) - EN Movies - Justin Timberlake has called his character in Bad Teacher "creepy".

The singer, who stars alongside Cameron Diaz, Lucy Punch and Jason Segel in the dark comedy, plays a substitute teacher from a wealthy background who causes rivalry between the female high school staff.

The star joked that his part becomes more sinister as he watches the fight for his attention unfold.

"I play Scott Delacorte and he's creepy. It's funny. Not funny ha ha', mostly creepy," he told website ET Online. "I kind of become the centrepiece between Lucy [Punch]'s character and Cameron [Diaz]'s character. I kind of like the tennis match, I just watch and get creepier by the minute."

Lucy Punch, who plays textbook' teacher Amy Squirrel in the movie, said that while her character happily competes against Cameron Diaz's Elizabeth Halsey she would never try and fight the gorgeous blonde for a man.

The 33-year-old called Amy's involvement in the love triangle between Scott and Elizabeth "foolish".

"I would never, ever, ever get in any war with Cameron over a man," she laughed. (C) Cover Media