Most Italian don't speak a second language properly. As a result (or maybe as a cause) most movies are translated. For foreigners and a more educated minority, some theatres show movies in their original language.

Pasquino
Located in the hearth of Trastevere, Pasquino plays VO movies every day. Three theater rooms offer a choice of American and European films.
Piazza S. Egidio 10 Tel. 06 58 03 622

Quirinetta
Quirinetta is a historical theater that maintained its 1940's looks. It is located in the historical center next to the famous via del Corso and plays VO movies exclusively. Warning: they are closed in Summer!
Via Minghetti 4 Tel. 066790012

Alcazar
VO movies only on Monday. The Alcazar is located in Trastevere, next to viale Trastevere.
Via Merry del Val 14 Tel. 065880099

Nuovo Sacher
VO movies only on Monday. The Nuovo Sacher is located in Trastevere, between viale Trastevere and via Porta Portese.
Largo Ascianghi 1 Tel. 06 58 18 116

Posto delle Fragole
Swedish - Italian cultural association, located in the S. Giovanni area, next to via Merulana.
Via Carlo Botta, 51 Tel. 06 47 82 48 68

Cinema Civetta sul Comò
Cultural association that plays new movies in VO and costs less than one Euro.
Via Cereate 8 Tel. 06 70 03 752