How do you find a movie that you don't remember the name?

[GraceJ]

Happy October everyone! has it happened to you that you remember a very funny or good movie, but you don't remember its name? Well, yesterday I spent hours looking for a classic movie. I only remembered one of the actors, and well, searching for film by film is quite tiring, fortunately I found a site named "What is my movie", and in just few minutes I found the movie that I was searching for, and others that sound very interesting. And I wonder, how do you find a movie you've watched long time ago, and you're interested in watching it again out of nostalgia but you don't remember the name, how do you find it?
If you have some tips on how to find movies, they are welcome.