Robert Downey Jr. aka RDJ becomes a synonym for the Marvel superhero Iron Man because of its super-strong portrayal by Downey. It is no doubt that Iron Man is the best role in his cinematic experience, but there are also other roles that he performs brilliantly and well praised for the same. On the occasion of his birthday, we listing down the best Robert Downey Jr. movies, but not from the MCU.
Best Robert Downey Jr. Movies
Zodiac

The film was released in 2007. The film was directed by David Fincher and the main cast includes Jake Gyllenhaal, Robert Downey Jr, and Mark Ruffalo.
The film tells the story of the manhunt for the Zodiac Killer, a serial murderer who terrorized the San Francisco Bay Area during the late 1960s and early 1970s, taunting police with letters, bloodstained clothing, and ciphers mailed to newspapers. The case remains one of the United States’ most infamous unsolved crimes.
Good Night, And Good Luck

The film was released in 2005. The film was directed by George Clooney and the main cast includes David Strathairn, Patricia Clarkson, George Clooney, Jeff Daniels, Robert Downey Jr., and Frank Langella.
The film is set in 1953, during the early days of television broadcast journalism. It focuses on the theme of media responsibility, and also addresses what occurs when the media offers a voice of dissent from government policy. The film brilliantly showcases the conflict between veteran radio and television journalist Edward R. Murrow and U.S. Senator Joseph McCarthy.
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Kiss Kiss Bang Bang

The film was released in 2005. The film was directed by Shane Black and the main cast includes Robert Downey Jr., Val Kilmer, Michelle Monaghan, and Corbin Bernsen.
The film revolves around a burglar who is mistaken as a detective and is partnered with a real detective to solve the case of a inherited wealth. The circumstances around it goes awfully wrong making both the suspects on another going murder case.
Tropic Thunder

The film was released in 2008. The film was directed by Ben Stiller and the main cast includes Ben Stiller, Jack Black, Robert Downey Jr., Jay Baruchel, and Brandon T. Jackson.
The film is a parody film of many films that are based on the Vietnam War. The ensemble cast also includes Tom Cruise, Nick Nolte, Matthew McConaughey, and Bill Hader. The story of the film revolves a film crew and actors whose frustrated director drops them in the middle of a jungle, they are forced to rely on their acting skills to survive the real action and danger.
Sherlock Holmes

The film was released in 2009. The film was directed by Guy Ritchie and the main cast includes Robert Downey Jr. as Sherlock Holmes, Jude Law, Rachel McAdams, and Mark Strong. The film is based on the characters of Sir Arthur Conan Doyle.
The film is set in 1890. In the city of London, a private investigator and his partner lives in 221B Baker Street. Both of them battles a man named, Lord Henry Blackwood who knows magic and is a threat to all of England.