LOS ANGELES (AP) John Mancini has a beef with some cartoon fish. Mancini is the founder of the Italian Institute of America, which decries what it calls Hollywood's stereotyping of Italians as dumb thugs or murderous gangsters. Now, after years spent fighting movie and TV mafia, along comes a kid's cartoon, the DreamWorks movie Shark Tale, filled with villainous Italian-sounding sea creatures ‹ played by Italian actors.

"We're concerned about what preteens are learning from the outside world," said Mancini, 56, a Long Island real estate manager. "They don't associate other groups as criminals, they only know Italians as gangsters."

Shark Tale, which is computer-animated like the DreamWorks hit Shrek, features some fearsome fish who run the undersea underworld.

One, a shark named Don Lino, is voiced by Robert De Niro. Will Smith plays a little fish who tells a tall tale about "whacking" a shark gangster who was actually taken out accidentally by a ship's anchor, drawing the attention of vengeful aquatic villains. The Sopranos actors Michael Imperioli and Vincent Pastore portray criminal characters, and filmmaker Martin Scorsese lends his voice to a sneaky blowfish. Renee Zellweger and Angelina Jolie also star.

With an October release date, the movie is not yet finished. The Italian Institute hasn't even seen the script, and there is no trailer so far.

DreamWorks spokeswoman Terry Press said the movie "is about family and telling the truth and the cost of telling a lie."

"You wish they would wait until they'd seen the movie before attacking it," she added.

Mancini can already claim an extremely rare victory while swimming against Shark Tale's tide: After his group lobbied DreamWorks, the name of an aging shark gangster (voiced by Peter Falk) was changed from Don Brizzi to Don Feinberg.

But switching one gangster from Italian to Jewish isn't enough for Mancini.

"We want character names identified as Italian dropped, the mannerisms, the forms of speech should be dropped," he said. "If they choose to make them Jewish or Rastafarians, we don't like that either, but our bag is Italians."

DreamWorks is unlikely to give in ‹ in part because the movie is a parody of such films as The Godfather and TV shows like The Sopranos.

"The foundation of comedy is poking fun at stereotypes," Press said. "I don't care if you're talking about Chris Rock, Mel Brooks ... that's what comedy does. We didn't create those stereotypes."

The Italian Institute has made Shark Tale the latest in a long battle over Italian-American representations at the movies. The group says there have been at least 1,233 films related to Italians since 1928, and about 31% show the culture in a positive light, while 69% are negative.

Although most actors feel the issue is overblown, even some Italian-American actors, like John Turturro, acknowledge that the gangster goombah stereotype can get tiresome.

Turturro, who portrayed real-life crook Sam Giancana in the 1995 TV movie Sugartime and a fictional conniving bookie (who's Jewish) in the Irish mobster drama Miller's Crossing, said he tries to avoid mafia roles now.

"Over the years, I don't do those parts," he told The Associated Press. "Once you've done it, you've done it. Isn't there any other part I could do?"

"Instead of protesting things, people should go out and, you know, try to tell a story that you want to tell. I've done that, but it's been very difficult," said Turturro, citing his 1992 film Mac, the story of a 1950s construction contractor inspired by his father's life. "With Mac, it was hard to do. Nobody wanted to do it because they weren't criminals. That really makes you feel terrible."

Vincent Pastore, better known as Big Pussy from The Sopranos, said he would never criticize the program that made him famous, but he also doesn't want to be known only as a wiseguy actor.

"If I'm walking down the street, people can call me Pussy any time they want. That doesn't bother me. What bothers me is when I go try to get a job in Hollywood and they say, Oh, it's Big Pussy. What I need to do is get back into the theater and let people come and see me in the audience playing other characters."

For now, Mancini's following is still relatively small ‹ about 1,000 members across the country, he says. He formed the group in 1987.

His group is not alone: In 2002, the Columbus Citizens Foundation, which runs the New York City Columbus Day parade, tried to block Mayor Michael Bloomberg from attending the annual celebration of Italian pride alongside Dominic Chianese and Lorraine Bracco of The Sopranos.

Bloomberg eventually balked at attending, and celebrated the day by having lunch with the actors.

Ken Wlaschin, a historian with the American Film Institute, said almost all ethnic groups could complain about stereotypes. The popularity of Italian gangsters has more to do with the fame of real-life Mafia figures, he said.

"The Irish have the same thing, the Chinese have the same thing. I don't think the Italian one is any better or worse," said Wlaschin.

Mancini said his complaint with Shark Tale is that it could unfairly make children equate an Italian surname with murder and crime.

The Italian Institute says its study shows 40% of the Italian-themed movies feature mobster characters ‹ while the actual percentage of Italian Americans who are criminals is much, much lower.

Of those mob movies, 12% feature real-life figures like Al Capone, while 88% are made-up, like Don Corleone from The Godfather or Paul Vitti from Analyze This.

Robert De Niro has portrayed all three of those crooks. In a 2002 press conference to promote the sequel Analyze That, he downplayed the concerns of those who objected to Italian gangster stereotypes. "That's part of our culture, and there certain things that are there, and you have to accept them, acknowledge them, make fun of them. And we all know what it is, you don't have to make more of it and take an issue and a stance like that. I think that's foolhardy," De Niro said. "Well, not foolhardy, but not necessary."

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