Question: Actor Sylvester Stallone's younger brother starred in what 1991 American action comedy film?

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The Expendables 3: The Expendables 3 (sometimes stylized as The Expendables III) is a 2014 American action film directed by Patrick Hughes and written by Creighton Rothenberger, Katrin Benedikt and Sylvester Stallone.  It is the third installment in "The Expendables" film series and the sequel to "The Expendables" (2010) and "The Expendables 2" (2012).  The film features an ensemble cast, including Sylvester Stallone, Jason Statham, Antonio Banderas, Jet Li, Wesley Snipes, Dolph Lundgren, Kelsey Grammer, Randy Couture, Terry Crews, Kellan Lutz, Ronda Rousey, Glen Powell, Victor Ortiz, Mel Gibson, Harrison Ford, and Arnold Schwarzenegger.

Frank Stallone: Frank P. Stallone Jr. (born July 30, 1950) is an American actor, singer/guitarist and songwriter.  He is the younger brother of actor Sylvester Stallone.

Cobra (1986 film): Cobra is a 1986 American action film directed by George P. Cosmatos, and written by Sylvester Stallone, who also starred in the title role.  The film co-stars Reni Santoni, Brigitte Nielsen and Andrew Robinson.  It is the first film where Brian Thompson plays a prominent role.  The film was loosely based on the novel "Fair Game" by Paula Gosling, which was later filmed under that title in 1995.  However, Stallone's screenplay was originally conceived from ideas he had during pre-production of "Beverly Hills Cop", whose screenplay he heavily revised.  He had wanted to make "Beverly Hills Cop" a less comedic and more action-oriented film, which the studio rejected as being far too expensive.  When he left that project, Eddie Murphy was brought in to play the lead role.

The Expendables 2: The Expendables 2 is a 2012 American ensemble action film directed by Simon West, written by Richard Wenk and Sylvester Stallone and based on a story by Ken Kaufman, David Agosto and Wenk.  Brian Tyler returned to score the film.  It is the sequel to the 2010 action film "The Expendables", and stars Sylvester Stallone, Jason Statham, Jet Li, Dolph Lundgren, Chuck Norris, Terry Crews, Randy Couture, Liam Hemsworth, Jean-Claude Van Damme, Bruce Willis, and Arnold Schwarzenegger.  The story follows the mercenary group known as "the Expendables" as they undertake a seemingly simple mission which evolves into a quest for revenge against rival mercenary Jean Vilain, who murdered one of their own and threatens the world with a deadly weapon.  It is the second installment in "The Expendables" film series.

Jennifer Flavin: Jennifer Flavin Stallone (born August 14, 1968) is a former American model and current entrepreneur and business owner.  She is married to actor Sylvester Stallone.

Vinnie Curto: Vinnie Curto (born July 10, 1955 in East Boston) is a retired American professional boxer in the Super Middleweight division.  Curto was managed by actor Sylvester Stallone and trained by Angelo Dundee.

Jackie Stallone: Jacqueline Frances Stallone (née Labofish; born November 29, 1921) is an American astrologer, former dancer, and promoter of women's wrestling.  She is the mother of actor Sylvester Stallone, singer Frank Stallone, and the late actress Toni D'Alto (by her ex-husband Anthony Filiti).

Escape Plan (film): Escape Plan (formerly known as Exit Plan and The Tomb) is a 2013 American action thriller film starring Sylvester Stallone and Arnold Schwarzenegger, and co-starring Jim Caviezel, 50 Cent, Vinnie Jones, Vincent D'Onofrio and Amy Ryan.  Directed by Swedish filmmaker Mikael Håfström, and written by Miles Chapman and Jason Keller (under the anagram pen-name 'Arnell Jesko'). , the first film to pair up action film icons Stallone and Schwarzenegger as co-leads follows Stallone's character Ray Breslin, a structural engineer who is incarcerated in the world's most secret and secure prison, aided in his escape by fellow inmate Emil Rottmayer (Schwarzenegger).

Hudson Hawk: Hudson Hawk is a 1991 American action comedy film directed by Michael Lehmann.  Bruce Willis stars in the title role and also co-wrote both the story and the theme song.  Danny Aiello, Andie MacDowell, James Coburn, David Caruso, Lorraine Toussaint, Frank Stallone, Sandra Bernhard, and Richard E. Grant are also featured.

Oscar (1991 film): Oscar is a 1991 American screwball comedy film directed by John Landis.  Based on the Claude Magnier stage play, it is a remake of the 1967 French film of the same name, but the setting has been moved to Depression-era Chicago and the plot centers on a mob boss trying to go straight.  The film stars Sylvester Stallone, Marisa Tomei, Ornella Muti, Tim Curry and Chazz Palminteri, and was a rare attempt by Stallone at doing a comedy role.

Supporting paragraphs: Hudson Hawk Frank Stallone
Answer: Hudson Hawk