Actor Vin Diesel is being advised to hold off sharpening his vocal chords for a role in movie musical GUYS AND DOLLS - because producers haven't given him a deal yet.

The XXX star has spoken about his plans to appear in the big screen remake, but NEIL MERON and Craig Zadan insist they've struck no deals with the bulky New Yorker.

Zadan says, "Oh God. Vin Diesel. We'd better clear this one up.

"He have interviews saying that he and Nicole Kidman were doing Guys and Dolls. We met him socially, but that's all.

"We're in the process of closing a rights deal now, and we can't make a commitment to any actor yet."

The OSCAR-winning Chicago producers say they're a month away from closing the rights deal - and it's still an open question as to who will takes on the roles of New York gamblers NATHAN DETROIT and SKY MASTERSON, played by FRANK SINATRA and Marlon Brando in the 1955 feature.