It's very hard to say as it is a matter of taste. In this kind of site you definitely shouldn't listen to anything answer which pretend to tell you that one movie is better than another (the last...
Gone with the wind is considered the best movie of all times, with Titanic coming in second. Avatar is the only movie in recent years to have even come close to the amount of attention circled around...
1. "It Happened One Night" (1934) with Clark Gable and Claudette Colbert. 2. "One Flew over the Cuckoo's Nest" (1975) with Jack Nicholson and Louise Fletcher. 3. "The Silence of the Lambs" (1991)...