Action film is a film genre where one or more heroes is thrust into a series of challenges that require physical feats, extended fights and frenetic chases. They tend to feature a resourceful character struggling against incredible odds, which may involve life-threatening situations, an evil villain, and/or being pursued, with victory achieved at the end after difficult physical efforts and violence. Story and character development are generally secondary to explosions, fist fights, gunplay and car chases.

While action films have traditionally been a reliable source of revenue for movie studios, relatively few action films garner critical praise, mainly because of their two-dimensional heroes or villains. Nevertheless, Hollywood has been making more action films than ever, in part because advancements in CGI have made it cheaper and easier to create action sequences and other visual effects that required professional stunt crews and dangerous staging in the past. However, audience reactions to action films containing significant amounts of CGI have been mixed, and films where computer animation is not believable are often met with criticism.

Katherine Marie Heigl ( /ˈhaɪɡəl/; born November 24, 1978) is an American actress and producer. She is possibly best known for her role as Dr. Izzie Stevens on ABC's Grey's Anatomy from 2005 to 2010, for which she won a Primetime Emmy Award for Outstanding Supporting Actress – Drama Series in 2007. She has also starred in films such as Under Siege 2: Dark Territory, Knocked Up, Zyzzyx Road, 27 Dresses, The Ugly Truth, Killers, Life As We Know It, New Year's Eve, and One for the Money.

Heigl started her career as a child model with Wilhelmina Models before she turned her attention to acting. She made her debut in the coming-of-age film That Night. Heigl co-starred as Isabel Evans in the television series Roswell and movies including My Father the Hero before landing her break-out role in Grey's Anatomy. Heigl has established herself as a cover model appearing on numerous publications including Maxim, Vanity Fair and Cosmopolitan.

Heigl is married to singer Josh Kelley, with whom she has two daughters.

Christopher Ashton Kutcher (/ˈkʊtʃər/; born February 7, 1978), best known as Ashton Kutcher, is an American actor, producer, former fashion model, and comedian, known for his portrayal of Michael Kelso in the Fox sitcom That '70s Show. He also created, produced and hosted Punk'd, and played lead roles in the Hollywood films Dude, Where's My Car?, Just Married, The Butterfly Effect, The Guardian, and What Happens in Vegas. He is also the producer and co-creator of the supernatural TV show Room 401 and the reality TV show Beauty and the Geek. Kutcher currently co-stars in the hit CBS sitcom Two and a Half Men as the character Walden Schmidt.

Kutcher was born in Cedar Rapids, Iowa. He is the son of Diane (née Finnegan), a Procter & Gamble employee, and Larry M. Kutcher, a factory worker. His father is of Bohemian (Czech) descent and his mother is of Irish, German, and Bohemian ancestry. Kutcher was raised in a conservative Roman Catholic family, with an older sister, Tausha, and a fraternal twin, Michael, who had a heart transplant when the brothers were young children. Kutcher's twin brother also has cerebral palsy and is a spokesperson for the advocacy organization Reaching for the Stars.

Antonio Rodolfo Quinn-Oaxaca (April 21, 1915 – June 3, 2001), more commonly known as Anthony Quinn, was a Mexican and American actor, as well as a painter and writer. He starred in numerous critically acclaimed and commercially successful films, including Zorba the Greek, Lawrence of Arabia, The Guns of Navarone, The Message, Guns for San Sebastian, Lion of the Desert and Federico Fellini's La Strada. He won the Academy Award for Best Supporting Actor twice; for Viva Zapata! in 1952 and Lust for Life in 1956.

Quinn was born Antonio Reyes in Chihuahua, Chihuahua, Mexico, during the Mexican Revolution. His mother, Manuela "Nellie" Oaxaca, was of Aztec Indian ancestry. His father, Francisco Quinn, was also born in Mexico, to an Irish immigrant father from County Cork and a Mexican mother. Frank Quinn rode with Pancho Villa, then later moved to Los Angeles and became an assistant cameraman at a movie studio. In Quinn's autobiography The Original Sin: A Self-Portrait by Anthony Quinn he denied being the son of an "Irish adventurer" and attributed that tale to Hollywood publicists.

Sanjay Dutt (born 29 July 1959) is a prominent Indian Hindi film star, producer and politician. Dutt, son of Hindi film actors Sunil Dutt and Nargis Dutt, made his acting debut in 1981. He has since featured in films that are amongst some of the most popular Hindi language films of the past three decades.

Dutt was born on 29 July 1959 to Bollywood megastars Sunil Dutt and Nargis and was educated at The Lawrence School, Sanawar. Dutt married the actress Richa Sharma in 1987. Sharma died of brain tumour. The couple have a daughter, Trishala, born in 1987, who lives in the United States with her grandparents, following a custody battle with Dutt after the death of his wife. Dutt's second marriage was to model Rhea Pillai in 1998. They divorced in 2005. Dutt married Manyata (also known as Dilnawaz Sheikh) in 2008 at a private ceremony in Goa, after two years of dating. On 21 October 2010, he became a father to twins, a boy named Shahraan and a girl named Iqra. He is well known for several altercations with the law, along with many other controversies throughout his life, as well as drug addiction in his early years.^{[citation needed]} He spent 5 months in prison in late 1982 after being caught in possession of illegal substances, upon his release he spent 2 years in the United States, the majority of which was spent in a Texan rehab clinic before returning to India and resuming his career.