Warner Bros. is a major American film studio and subsidiary of Time Warner known for producing films, television, and music. It has several subsidiary companies and owns half of The CW Television Network. Paramount Pictures is one of the largest film studios known for distributing successful franchises like Star Trek, Transformers, and Marvel films. It is a subsidiary of Viacom. Lionsgate began in Vancouver and is now the most successful independent film studio in North America. It is known for films seen as too controversial for major studios like Saw and The Hunger Games, and acquired Summit Entertainment in 2012.

1. Film distributors

2. Warner Bros
Warner Bros. Entertainment Inc., formerly known as Warner
Bros. Studios, commonly referred to as Warner Bros. (spelled
Warner Brothers during the company's early years), or
simply WB—is an American producer of film, television, and
music entertainment. One of the major film studios, it is a
subsidiary of Time Warner, with its headquarters in Burbank,
California and New York. Warner Bros. has several subsidiary
companies, including Warner Bros. Studios, Warner Bros.
Pictures, Warner Bros. Interactive Entertainment, Warner
Bros. Television, Warner Bros. Animation, Warner Home
Video, New Line Cinema, TheWB.com, and DC
Entertainment. Warner owns half of The CW Television
Network.

3. Paramount pictures
Paramount Pictures Corporation (commonly known as
Paramount Pictures or simply Paramount) is a film and
television production/distribution studio, consistently
ranked as one of the largest (top-grossing) film
studios. It is a subsidiary of U.S. media conglomerate
Viacom, Paramount is a member of the Motion
Picture Association of America (MPAA). It has
distributed various commercially successful film
series, such as Shrek, Transformers, Mission:
Impossible, Marvel Cinematic Universe (2008-2011),
Indiana Jones (1980-2008), Star Trek, Jackass, Beverly
Hills Cop, Crocodile Dundee, Madagascar, Kung Fu
Panda, Paranormal Activity, G.I. Joe, and Friday the
13th.

4. Lions Gate entertainment
Lions Gate Entertainment Corporation (or Lionsgate) is an American entertainment company.
The company was formed in Vancouver, British Columbia, on July 3, 1997, and is
headquartered in Santa Monica, California. As of November 2013, it is the most commercially
successful independent film and television distribution company in North America and the
seventh most profitable movie studio. Its first major box office success was American Psycho
in 2000, which began a trend of producing and distributing films too controversial for the
major American studios including Lolita. Other notable films included Affliction, Gods and
Monsters, Dogma, Saw, and the Michael Moore documentary Fahrenheit 9/11, which had
been the studio's highest grossing film until the release of The Hunger Games in 2012. The
Lionsgate film The Hunger Games grossed $68.3 million when it premiered at the U.S. box
office on March 23, 2012. It was the best opening day ever for a non-sequel and the fifth
highest of all time. Of that total, $19.7 million was earned via Thursday midnight screenings.
In its first weekend, The Hunger Games grossed $152.5 million, making it Lionsgate's highest
grossing film after just three days. On January 13, 2012, Lions Gate Entertainment acquired
Summit Entertainment, the studio behind the Twilight franchise for $412.5 million. On May 3,
2012, Lionsgate Films pacted with CodeBlack Enterprises' CEO Jeff Clanagan by creating
CodeBlack Films. CodeBlack Films will be based at Lionsgate.