Question: In what Rock film did Sylvestor Stallone star with a family member?

Context paragraphs:
List of association football families: This is a list of association football (soccer) families.  The countries are listed according to the national teams of the senior family member if the other family member played for a different country.  If the senior members of the given member did not play international football, the family will be listed according to nationality (e.g., the Trézéguets).

Little Rock Film Festival: The Little Rock Film Festival (LRFF) is an annual film festival held in Downtown Little Rock, Arkansas each spring.  Based in the historic Little Rock River Market District, home to the William Jefferson Clinton Presidential Library, the Little Rock Film Festival has showcased the best in Narrative, Documentary, and Short films from around the World.  It hosts parties, panels, workshops, and youth programs for aspiring filmmakers.  The LRFF devotes screenings and programs specifically for Southern and Arkansas films.  In 2010, citing prize money, distribution opportunity, and a chance to be a part of a large event, MovieMaker Magazine included the Little Rock Film Festival on its annual list of The Top 25 Film Festivals Worth the Entry Fee.

Castle Rock Film Festival: The Castle Rock Film Festival (CRFF) is a film festival that takes place annually in the state of Colorado, in the United States.  Established in 2009, the festival is held in late September or early October in Castle Rock, Colorado and showcases films and screenplays from the Rocky Mountain Region of the U.S. (AZ, CO, ID, MT, NM, NV, UT, and WY).  The festival comprises competitive sections for dramatic and documentary films (feature-length, short and student films) and for feature length screenplays.

Service flag: A service flag or service banner is a banner that family members of those serving in the United States Armed Forces can display.  The flag or banner is officially defined as a white field with a red border, with a blue star for each family member serving in the Armed Forces of the United States during any period of war or hostilities in which the Armed Forces of the United States are engaged.  A gold star (with a blue edge) represents a family member that died during service, regardless of cause of death.  The deceased might have been killed in action, or died due to unrelated causes.

Rocky V: Rocky V is a 1990 American sports drama film.  It is the fifth film in the "Rocky" series, written by and starring Sylvester Stallone, and co-starring Talia Shire, Stallone's real-life son Sage, and real-life boxer Tommy Morrison, with Morrison in the role of Tommy Gunn, a talented yet raw boxer.  Sage played Robert Balboa, whose relationship with his famous father is explored.  After Stallone directed the second through fourth films in the series, "Rocky V" saw the return of John G. Avildsen, whose direction of "Rocky" won him an Academy Award for Best Directing.

George Spahn: George Spahn (February 11, 1889 – September 22, 1974) was a rancher who once owned the Spahn Ranch near Chatsworth, Los Angeles, California.  Spahn (as did previous owner William S. Hart) rented the ranch to the movie industry to film Westerns.  At the ranch, he housed Charles Manson and his followers.  The 1969 murders of actress Sharon Tate and six others by Manson's devotees were allegedly hatched at the Spahn Ranch.  Manson persuaded Spahn to permit "the Family" to live at his ranch.  Manson ordered the Family women to have sex with the then nearly blind 80-year-old.  The women also acted as seeing eye guides for Spahn.  Spahn nicknamed all the Manson girls—Squeaky, Sadie Mae, Ouisch, etc.  According to Manson Family member Paul Watkins, notorious Mansonite Lynette "Squeaky" Fromme got her nickname because of the sound she made when Spahn ran his hand up her thigh.  Family member Charles Watson has written that his own nickname, "Tex", was given to him by Spahn, who recognized his Texas accent.

Edgeplay: A Film About the Runaways: Edgeplay: A Film about the Runaways is a 2004 documentary film that was produced and directed by former Runaways bassist Victory Tischler-Blue.  "Edgeplay" chronicles the history of the all-teenage-girl rock band The Runaways, whose members included future rock stars Lita Ford and Joan Jett.  The movie premiered as part of filmmaker Allison Anders' 2004 "Don't Knock the Rock Film and Music Festival".

Willis family: The Willis family are a fictional family from the Australian soap opera "Neighbours".  They were introduced by Don Battye in 1989, but left screens in 1996, before being reintroduced in 2013.  The first family member to be seen on-screen was Brad Willis, who appeared in a guest capacity from October 1989, and then his sister Cody from November.  The family became a more permanent fixture with the arrival of patriarch Doug Willis and his wife Pam, who moved onto Ramsay Street the following year.  Cody was the last family member to regularly appear in the show until her on-screen death in 1996, which brought Pam back briefly to bury her daughter.

Peter Denyer: Peter John Denyer (20 August 1947 in Dartford – 18 September 2009 in Cheltenham) was an English actor who was perhaps best remembered for playing Dennis Dunstable in London Weekend Television's "Please Sir! ", and its spin-off series "The Fenn Street Gang", taking on the role of a teenager when already into his 20s.  He also appeared in the film versions of "Please Sir! " (1971) and "Never Mind the Quality, Feel the Width" (1973), and the glam rock film "Never Too Young to Rock" (1975).

Sage Stallone: Sage Moonblood Stallone (May 5, 1976 – July 13, 2012) was an American actor, film director, film producer, and film distributor.  He was the elder son of Sylvester Stallone.

Supporting paragraphs: Rocky V Sage Stallone
Answer: Rocky V