Mainstream- Fast and Furious 7Is a 2015 American action film directed by James Wan and written by Chris Morgan. It is the seventh one. The film stars Vin Diesel, Paul Walker, Dwayne Johnson, Michelle Rodriguez, Tyrese Gibson, Chris 'Ludacris' Bridges, Jordana Brewster, Kurt Russell, and Jason Statham. Furious 7 follows Dominic Toretto Brian O'Conner and the rest of their team, who have returned to the United States to live normal lives after securing amnesty for their past crimes in Fast & Furious 6 (2013), until Deckard Shaw, a rogue special forces assassin seeking to avenge his comatose younger brother, puts them in danger once again.

This is mainstream because there are many movies made.

Independent- The Fruitvale stationFruitvale Station is a 2013 American biographical drama film written and directed by Ryan Coogler. It is Coogler's first feature-length film and is based on the events leading to the death of Oscar Grant, a young man who was killed in 2009 by BART police officer at the Fruitvale Station in Oakland, California.This is an independent movie because it is written and directed one off. Coogler doesn’t produce films regularly.

Niche-Harry Potter Harry Potter is a series of seven fantasy novels written by British author J. K. Rowling. The series chronicles the life of a young wizard, Harry Potter, and his friends Hermione Granger and Ron Weasley, all of whom are students at Hogwarts School of Witchcraft and Wizardry. The main story arc concerns Harry's struggle against the Dark wizard Lord Voldemort, who aims to become immortal, overthrow the Ministry of Magic, subjugate non-magic people and destroy anyone who stands in his way.

This is a niche movie because this is a one of a kind movie that has a specific target audience.