Production for the "Men in Black 3" film has been temporarily halted amid reports that star Will Smith has been clashing with the producers about the script. The principal photography was scheduled to start this month, but was delayed and will begin in November.

According to a Page Six source, Smith, director Barry Sonnenfeld, and the producers have been clashing about the script for the film, which also stars Tommy Lee Jones.

The insider said, "'Men in Black 3' has gone on hiatus again, this time for two weeks, after having shut down for a week and started back up. Smith, Sonnenfeld and the producers have been fighting. The start date for filming had already been put off."

However, a Sony Pictures rep told the trade that the real reason for delay is New York's movie incentives.

"The only reason production will begin in mid-November as opposed to late October is to take advantage of recent changes affecting New York State film incentives. Suggesting that a disagreement triggered the shift is complete fiction."

Another source denied the reported rift, saying, "Will and Barry have worked together on numerous films and they are friends as well as creative collaborators."

"Men in Black 3" is the follow-up to 1997's blockbuster sci-fi comedy "Men in Black" and its 2002 sequel "Men in Black II." It will be released in 3-D.