Man With A Movie Camera (1929)

This film is famous for the range of cinematic techniques Vertov invents, deploys or develops, such as double exposure, fast motion, slow motion, freeze frames, jump cuts, split screens, Dutch angles, extreme close-ups, tracking shots, footage played backwards, animations, and a self-reflexive style(at one point it features a split screen tracking shot; the sides have opposite Dutch angles).

IMDB page (8.3/10)

The Vagabond (1916)

Charlie Chaplins 53rd Film Released July 10 1916

The Vagabond was a silent film by Charlie Chaplin and his third film with Mutual Films. Released in 1916, it co-starred Edna Purviance, Eric Campbell, Leo White and Lloyd Bacon. This film echoed Chaplin's work on The Tramp, with more drama mixed in with comedy. The story begins with Charlie, playing music to raise money, and instead finds the abused girl (played by Edna) living in a gypsy camp. As in The Tramp, he works on finding a way to help her.

IMDB page 7/10

The Goat (1921)

This is a highly rated short silent comedy by Buster Keaton.
Dumb luck sets some policemen on his trail -- after a series of innovative escapes, he gets mistaken for a murderer with a price on his head, which means the people that aren't chasing him are fleeing from him.

IMDB page 7.9/10