In 1994, Quentin Tarantino gave the world "Pulp Fiction," a film that redefined the gangster movie genre. John Travolta, who played Vincent Vega, instantly became a style icon and the embodiment of a cool guy with a philosophical outlook on life.

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imdb.com
"The Punisher" (2004)
Travolta plays Howard Saint, the main antagonist of the film. He is a ruthless and uncompromising crime lord. Saint orders the killing of Frank Castle's family (Thomas Jane), which marks the beginning of the Punisher's story.
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imdb.com
Reviewer oneguyrambling from 'Imdb'Travolta is quite good in this movie as a bad guy, mainly because I feel he no longer resembles a nice good guy, unless you're a middle-aged woman constantly recalling scenes from 'Grease', and as Howard Saint, he's always angry.
"Get Shorty" (1995)
A stylish crime comedy where Travolta plays Chili Palmer, a loan shark who goes to Hollywood to collect debts and unexpectedly gets involved in the movie business.
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imdb.com
Reviewer rbverhoef from "Imdb"The actors play their characters very well. Again, Travolta is excellent and is the center of attention in the film. Director Barry Sonnenfeld (from 'The Addams Family') did a good job with the direction, avoiding dull moments. Fortunately, we have actors and a director who made it even better and definitely more interesting.
"From Paris with Love" (2010)
A dynamic action film from producer Luc Besson, where Travolta plays the reckless secret agent Charlie Wax. He arrives in Paris to carry out a secret operation and teams up with a young embassy employee (Jonathan Rhys Meyers).
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imdb.com
Reviewer KineticSeoul from 'Imdb'Jonathan Rhys Meyers, who plays the rule-following character, was rather dull, and he occupies the first few minutes of the film, but when John Travolta shows up, let's just say, it's damn exciting. Just switch off and enjoy this movie for what it is; not every movie has to be smart to be enjoyable.
"The Taking of Pelham 123" (2009)
A remake of the classic 1974 thriller "The Taking of Pelham 123." Travolta plays Ryder, the leader of a gang that hijacks a subway train in New York City. He demands a ransom, threatening to kill passengers, and engages in a tense psychological duel with the dispatcher (Denzel Washington).
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imdb.com
Reviewer C-Younkin from 'Imdb''The Taking' works well as a thriller because the tandem of Tony Scott and Denzel Washington (this is their fourth collaboration) always delivers, and the addition of Travolta, who is always entertaining as a villain, is another nice touch. It relies on strong acting and solid direction, and for these reasons alone, it's worth watching.
"Gotti" (2018)
A biographical crime drama that tells the story of the infamous mafia boss John Gotti, played by Travolta. The film spans several decades of Gotti's life, showcasing his rise to power, criminal dealings, and legal battles.
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imdb.com
Do you think John Travolta is more convincing as a villain than as a hero?Reviewer Silvertip_M from 'Imdb'In terms of realism, this was a great turn for Travolta. He could have played Gotti as a cold and 'freezing' person who could turn on his charisma at will, but instead, he played him quite sincerely. This fits well with the descriptions of the mafia boss I have read over the years. In them, he was portrayed as a charming and sociable person who could become brutal and charming again within seconds.
Earlier, we at zoomboola.com shared about five romantic comedies featuring Julia Roberts that are worth watching if you miss "Pretty Woman."