Question: Which documentary film is longer between Tab Hunter Confidential and Grand Canyon?
Context: Brighty of the Grand Canyon is a 1953 children's novel by Marguerite Henry and a 1967 film of the same name based on the novel.  They present a fictionalized account of a real-life burro named "Brighty", who lived in the Grand Canyon of the Colorado River from about 1892 to 1922. The Yarlung Tsangpo Grand Canyon or Yarlung Zangbo Grand Canyon () or simply the Tsangpo Canyon, Brahmaputra Canyon or Tsangpo Gorge, along the Yarlung Tsangpo River in Tibet, China, is the deepest canyon in the world, and at 504.6 km (314 miles) is slightly longer than the Grand Canyon in the United States, making it one of the world's largest.  The Yarlung Tsangpo (Tibetan name for the upper course of the Brahmaputra) originates near Mount Kailash and runs east for about 1700 km, draining a northern section of the Himalayas before it enters the gorge just downstream of Pei, Tibet near the settlement of Zhibe.  The canyon has a length of about 150 miles (240 km) as the gorge bends around Mount Namcha Barwa (7782 m) and cuts its way through the eastern Himalayan range.  Its waters drop from about 2,900 m near Pei to about 1,500 m at the end of the Upper Gorge where the Po Tsangpo River enters.  The river continues through the Lower Gorge to the Indian border at an elevation of 660 m.  The river then enters Arunachal Pradesh and eventually becomes the Brahmaputra. That Kind of Woman (1959) is an American drama film directed by Sidney Lumet, who was nominated for the Golden Bear at the 9th Berlin International Film Festival.  It stars Sophia Loren and Tab Hunter.  The screenplay by Walter Bernstein, based on a short story by Robert Lowry ("Layover in El Paso"), is highly reminiscent of the 1938 film "The Shopworn Angel". Grand Canyon Massacre (Italian: "Massacro al Grande Canyon", lit.  "Massacre at Grand Canyon") is a 1964 Italian Spaghetti Western film starring James Mitchum, Milla Sannoner, and George Ardisson.  It was directed by Sergio Corbucci and produced by Albert Band.  The film's theme song was performed by Rod Dana. Grand Canyon is a 1958 American short documentary film directed by James Algar and produced by Walt Disney Productions.  It was shown as a supplement during "Sleeping Beauty's" initial run, and it won an Academy Award at the 31st Academy Awards in 1959 for Best Short Subject (Live Action).  It is also included as a bonus feature on the 1997 laserdisc, 2003 DVD, and 2008 DVD & Blu-ray releases of "Sleeping Beauty". The Last Chance (Italian: "Scacco internazionale" ) is a 1968 Italian spy film written and directed by Giuseppe Rosati and starring Tab Hunter.  It was the last film of Daniela Bianchi, who married shortly later and abandoned showbusiness to devote herself to her family.  It is also the only spy film of Carlo Delle Piane, but his scenes were removed from the final cut. U.S. Route 180 is an east–west United States highway.  Like many three-digit routes, US 180 no longer meets its "parent", US 80.  US 80 was decommissioned west of Mesquite, Texas, and was replaced in Texas by Interstate 20 and Interstate 10 resulting in U.S. 180 being longer than U.S. 80.  The highway's eastern terminus is in Hudson Oaks, Texas (west of Fort Worth, near Weatherford), at an intersection with Interstate 20.  Its western terminus is unclear.  Signage at an intersection with State Route 64 in Valle, Arizona 40 miles (64 km) northwest of Flagstaff indicates that the route ends at SR 64, which is consistent with the AASHTO U.S. Highway logs.  However, many maps continue the US 180 designation to the south rim of the Grand Canyon at Grand Canyon Village.  Signage at the SR 64 intersection as late as 2011 indicated that US 180 continues north concurrent with the route.  However, no signage along the route exists past this intersection until SR 64 turns east towards Cameron, Arizona.  At this intersection, signage makes no mention of US 180 nor is there any mention at the terminus of SR 64 at US 89. The Fickle Finger of Fate (also known as El Dedo del destino and The Cup of St. Sebastian) is a 1967 comedy film directed by Richard Rush, produced by Sidney W. Pink, and starring Tab Hunter.  Hunter stars as a clumsy businessman who accidentally gets wrapped up in a plot of intrigue while on a trip to Spain. Tab Hunter Confidential is a 2015 American documentary feature film focusing on the American actor, singer, and author Tab Hunter, and is inspired by his autobiography of the same name.  Produced by Allan Glaser in association with Automat Pictures, the film was directed by Jeffrey Schwarz. Jeffrey Schwarz is an American Emmy Award-winning producer and director known for an extensive body of documentary work.  His feature documentaries include "The Fabulous Allan Carr, Tab Hunter Confidential, I Am Divine, Vito, " and "Spine Tingler!  The William Castle Story."
Answer: Tab Hunter Confidential