IMDB is a vast source of information for films and tv shows, with thousands of reviews telling you, what is worth seeing and what is not. Saving you time.
Along with the review service, you can find all of the information you could ever want to know about a film, from budget, cast, trivia, locations... anything, I have turned to IMDB countless times over the years before seeing a film just to know if it is worth the money, or if a tv series is worth my time. And just to discover movies that I may enjoy, especially good is their top 250 list, which is compiled from tens if not hundreds of thousands of reviews and ratings.
I have been using IMDB forages.... 5 years or more I forget, but it has always been easy to find what I want and they keep improving all the time; improvements I might add that actually improve my experience of the site. And rare that thing that should be commended.
I have some improvement ideas, but would like to work for them one day so will keep them to myself until the time is right. :-)