Twi-Hard: With a Vengeance.' />

Bruce Willis has poked fun at Kristen Stewart and Robert Pattinson's relationship break-up in a spoof video called Twi-Hard: With a Vengeance.

The Die Hard star mocked the Twilight couple - whose romance was thrown into turmoil last month when the brunette beauty publically confirmed she cheated on Pattinson with married director Rupert Sanders - during a sketch on The Late Show with David Letterman.

Willis jokingly broke down in tears as he attempted to deliver his catchphrase "Yippee-ki-yay, motherf***er!" during a spoof trailer for fake film Twi-Hard: With a Vengeance, which shows his alter-ego failing to compose himself, due to Pattinson and Stewart's broken relationship, while negotiating with a villain.

He cries: "I'm a little distracted lately, I lost some friends ... Kristen and Rob, Bella and Edward - they broke up! They were supposed to be together forever, goddamnit!"


While introducing the sketch, Willis managed another dig at the pair by joking that the spoof trailer is a "pretty emotional scene".

He told Letterman: "It's a pretty emotional scene, but very tough. There's a lot of action going on."

Will Ferrell also mocked the couple's relationship recently when the comedy actor referred to Stewart as a "trampire".

Pattinson has put the Los Angeles home where's he's lived with Stewart for nearly a year on the market for US$6.3 million, but the pair are thought to be edging closer to meeting face-to-face in an attempt to patch up their three-year relationship.

Watch a clip from Twi-Hard: With a Vengeance:

- Bang! Showbiz