Parallax View

"Parallax View" (1974) is a thriller directed by Alan J. Pakula, stars Warren Beatty as an ambitious reporter investigating the assassination of a senator. He discovers-following mysterious deaths of reporters who were present at the assassination- a conspiracy involving the mysterious Parallax Corporation. It is an interesting film, with an element of experimental filmmaking- one scene shows a haunting montage of iconographic imagery used as a recruitment test for the Parallax Corporation.
Alan J. Pakula also directed "Klute" (1971) and "All the President's Men" (1976).

http://www.imdb.com/title/tt0071970/
http://en.wikipedia.org/wiki/The_Parallax_View

Mood: Political themes and conspiracy theories.
Good aspects: Interesting cinematography. 70's political paranoia thriller.

Bonnie and Clyde

"Bonnie & Clyde" (1967) directed by Arthur Penn, starring Warren Beatty & Faye Dunaway is a great crime gangster thriller set in Depression-era America. It is based on the real life notorious bank robbing partners-in-crime Clyde Barrow and Bonnie Parker. Warren Beatty also produced the film. The film is quite violent in some scenes-breaking many taboos at the time, and is considered a groundbreaking film. The film won two Oscars: Best Actress in a Supporting Role: Estelle Parsons, and Best Cinematography: Burnett Guffey.

http://en.wikipedia.org/wiki/Bonnie_and_Clyde_(film)
http://www.imdb.com/title/tt0061418/

Mood: Gangsters, crime, Depression-era America
Good Aspects: Based on the real life notorious criminals Bonnie Parker and Clyde Barrow.
Worth Noticing: Violent scenes.