Question: Which film is older, Snow Dogs or Prom?

Context articles: Hello Mary Lou: Prom Night II
The World's Best Prom
Tommy Swerdlow
Prom (film)
Damion Poitier
Diabetes Health Profile
Mammary tumor
Snow Dogs
Prom Night (2008 film)
Prom Night (1980 film)

Hello Mary Lou: Prom Night II is a 1987 Canadian slasher film directed by Bruce Pittman, and starring Michael Ironside, Wendy Lyon, Louis Ferreira, and Lisa Schrage.
 It follows a high school student who becomes possessed by Mary Lou Maloney, a student who died at her high school prom in 1957.
 The second installment in the "Prom Night" saga, it was originally intended to be a standalone film, but was retitled and underwent reshoots to capitalize on the success of the original "Prom Night".
The World's Best Prom is a 2006 documentary film about a high school prom in Racine, Wisconsin.
 "Prom" was released as a short film and was expanded to feature-length documentary length.
 It was released in its longer form on April 4, 2006.
 It was filmed on location in Racine and was shot entirely in digital video.
 This film was originally a 17-minute short film of the same name which won Best Documentary at the Wisconsin Film Festival.
 The film was also re-edited as mini-episodes for Truth, but the episodes never aired.
Tommy Swerdlow is an American actor and screenwriter.
 He has appeared in such films as "Howard the Duck" (1986) and "Spaceballs" (1987) and co-wrote the screenplays of "Cool Runnings" (1993), "Little Giants" (1994) and "Snow Dogs" (2002).
 Swerdlow made his directorial debut with the 2017 feature "A Thousand Junkies".
 He has also written a biopic about the life of Matisyahu titled "King Without a Crown".
Prom is a 2011 American teen romance comedy-drama film directed by Joe Nussbaum written by Katie Wech and produced by Ted Griffin and Justin Springer.
 It was released on April 29, 2011, by Walt Disney Pictures.
 The film was the first major production shot with Arriflex's Alexa HD cameras to be released in theatres.
Damion Poitier ( ) is an American actor and stuntman known for his roles in film and television.
 He received notable media attention after his brief appearance as Thanos in 2012's "The Avengers".
 He has also had roles in "", "Star Trek", "Jarhead", and "Snow Dogs".
The Diabetes Health Profile (DHP) is a diabetes-specific patient reported outcome measure (PROM) developed to evaluate the health-related quality of life (HRQoL) of people living with Type 1 and Type 2 diabetes aged 16 years and older.
 It has been used in community surveys, research studies, clinical trials, and educational interventions both in Europe and completed globally by more than 10,000 patients.
 The DHP is the diabetes-specific PROM selected by the UK Department of Health for their Long Terms Conditions PROM Pilot Study being carried out by Oxford University.
A mammary tumor is a neoplasm originating in the mammary gland.
 It is a common finding in older female dogs and cats that are not spayed, but they are found in other animals as well.
 The mammary glands in dogs and cats are associated with their nipples and extend from the underside of the chest to the groin on both sides of the midline.
 There are many differences between mammary tumors in animals and breast cancer in humans, including tumor type, malignancy, and treatment options.
 The prevalence in dogs is about three times that of women.
 In dogs, mammary tumors are the second most common tumor (after skin tumors) over all and the most common tumor in female dogs with a reported incidence of 3.4%.
 Multiple studies have documented that spaying female dogs when young greatly decreases their risk of developing mammary neoplasia when aged.
 Compared with female dogs left intact, those spayed before puberty have 0.5% of the risk, those spayed after one estrous cycle have 8.0% of the risk, and dogs spayed after two estrous cycles have 26.0% of the risk of developing mammary neoplasia later in life.
 Overall, unspayed female dogs have a seven times greater risk of developing mammary neoplasia than do those that are spayed.
 While the benefit of spaying decreases with each estrous cycle, some benefit has been demonstrated in female dogs even up to 9 years of age.
 There is a much lower risk (about 1 percent) in male dogs and a risk in cats about half that of dogs.
Snow Dogs is a 2002 American Northern adventure comedy film directed by Brian Levant, and starring Cuba Gooding Jr. and James Coburn.
 The film was released in the United States on January 18, 2002 by Walt Disney Pictures.
 The film is inspired by the book "" by Gary Paulsen.
Prom Night is a 2008 American-Canadian slasher film directed by Nelson McCormick that is a loose remake of the 1980 film "Prom Night".
 The film stars an ensemble cast including Brittany Snow, Scott Porter, Jessica Stroup, Dana Davis, Collins Pennie, Kelly Blatz, James Ransone, Brianne Davis, Kellan Lutz, Mary Mara, Ming-Na Wen, Johnathon Schaech and Idris Elba.
 A high school girl named Donna Keppel (Snow) is traumatized after witnessing her former teacher, Richard Fenton (Schaech), brutally murder her entire family after he had become dangerously obsessed with her.
 Three years later, as Donna gets ready for her senior prom, Fenton escapes from custody, follows her to the hotel hosting the prom, and kills anybody who gets in the way of his reunion with Donna.
Prom Night is a 1980 Canadian slasher film directed by Paul Lynch, based on a story by Robert Guza Jr., and starring Leslie Nielsen and Jamie Lee Curtis.
 The story concerns a group of high school seniors who are targeted by a mysterious masked killer in revenge for their culpability in the accidental death of a young girl six years earlier.
 The anniversary of the incident falls on their high school's prom night, when the older sister of the dead girl is being crowned Prom Queen.