David Arquette has slammed rumours that Jennifer Aniston and Vince Vaughn have split, calling the reports "complete horse doo-doo." Arquette and his wife Courteney Cox have been close with Aniston ever since the two starred in hit sitcom FRIENDS. The SCREAM star told Los Angeles radio station Star 98.7 the rumours are false saying, "That is complete horse doo-doo. "It's so funny, they say stupid things like, 'Why'd Vince leave?' or something like that. "And the answer is because he's doing a movie! I mean, come on people!" Aniston herself denied the break-up reports on Wednesday (11OCT06), telling talk show host Oprah Winfrey that she and Vince are "still on."