The 1.1"/75 caliber gun was an American anti-aircraft weapon of World War II. The name means that it had a bore diameter of 1.1 inches (28 mm) and barrel length of 75 × 1.1 inches = 82.5 inches (2.1 m), using the "caliber" nomenclature common to large artillery pieces.

It was developed when the U.S. Navy Bureau of Ordnance (BuOrd) decided that the .50 caliber machine gun was not adequate for future AA duties:

During the early part of World War II, they were deployed on most U.S. Navy warships of destroyer and larger size.

Due to teething problems that were never rectified, the gun was very unpopular with its crews. It was replaced with the Bofors 40 mm gun whenever possible, but served until the end of the war on some ships.

The guns were sometimes referred to as "Chicago Pianos."

Denzel Hayes Washington, Jr. (born December 28, 1954) is an American actor, screenwriter, director, and film producer. He first rose to prominence when he joined the cast of the medical drama, St. Elsewhere, playing Dr. Philip Chandler for six years. He has received much critical acclaim for his work in film since the 1990s, including for his portrayals of real-life figures, such as Steve Biko, Malcolm X, Rubin "Hurricane" Carter, Melvin B. Tolson, Frank Lucas and Herman Boone.

Washington has received two Academy Awards, two Golden Globe awards, and a Tony Award. He is notable for winning the Best Supporting Actor for Glory in 1989; and the Academy Award for Best Actor in 2001 for his role in the film Training Day.

Denzel Washington was born in Mount Vernon, near New York City, New York on December 28, 1954. His mother, Lennis "Lynne", was a beauty parlor-owner and operator born in Georgia and partly raised in Harlem. His father, Reverend Denzel Hayes Washington, Sr., a native of Buckingham County, Virginia, served as an ordained Pentecostal minister, and also worked for the Water Department and a local department store, S. Klein.

Chloë Grace Moretz ( /məˈrɛts/; born February 10, 1997) is an American actress and model. At the age of seven, she began her acting career with performances in films and series such as The Amityville Horror, (500) Days of Summer, Diary of a Wimpy Kid, Big Momma's House 2, Desperate Housewives, and Dirty Sexy Money, for which she received numerous Young Artist Awards nominations.

She received worldwide recognition for her breakthrough performance as Hit-Girl in the 2010 superhero film Kick-Ass. Her praise continued with her roles in the critically acclaimed films Let Me In and Hugo.

Moretz was born in Atlanta, Georgia. Her mother, Terri (née Duke), is a nurse, and her father, McCoy Lee Moretz, is a plastic surgeon of German descent. Moretz has four older brothers; Brandon, Trevor, Colin, and Ethan. She has described her family as "very Christian". One of her brothers, Trevor Duke Moretz, is her acting coach and accompanies her on trips and press dates when her parents are unable to attend.

Elijah Jordan Wood ( /ɪˈlaɪdʒə ˈdʒɔrdən ˈwʊd/; born January 28, 1981) is an American actor. He made his film debut with a minor part in Back to the Future Part II (1989), then landed a succession of larger roles that made him a critically acclaimed child actor by age 9, being nominated for several Young Artist Awards. He is best known for his high-profile role as Frodo Baggins in Peter Jackson's critically acclaimed The Lord of the Rings trilogy and its upcoming prequels The Hobbit films. Since then, he has resisted typecasting by choosing varied roles in critically acclaimed films such as Bobby, Eternal Sunshine of the Spotless Mind, Sin City, Green Street and Everything Is Illuminated.

Wood starred in the film Day Zero (2007) and provided the voice of the main character in the award-winning animated musical films Happy Feet and Happy Feet Two. Wood also voiced the lead as 9 in the Tim Burton-produced action/science fiction film 9. He played an American tourist turned vampire in Paris, je t'aime. In 2005, he started his own record label, Simian Records. He currently appears as Ryan in FX's dark comedy Wilfred, which debuted on June 23, 2011.