Trying to keep this site foreign (for now). Plus I've rehashed a silent film list several times, and would like to just rate the ones made outside of the US.

1. Napoleon (1927) - Abel Gance
2. The Man With a Movie Camera (1929) - Dziga Vertov
3. The Passion of Joan of Arc (1928) - Carl Theodor Dreyer 
4. Variety (1925) - E. A. Dupont
5. Metropolis (1927) - Fritz Lang
6. The General Line (1929) - Sergei Eisenstein
7. Battleship Potemkin (1925) - Sergei Eisenstein
8. Faust (1926) - F. W. Murnau 
9. Die Nibelungen (1924) - Fritz Lang
10. Zvenigora (1928) - Alexander Dovzhenko

Well by my list only about two countries made foreign films in the silent era, but hey Germany and the USSR dominated, what can I say?