How To Save 100 Hours A Year*

Go to the Movie Spoiler so you don't have to see crappy movies to know what happens.

Of course, you have a certain risk of knowing the endings of good movies that you should have watched in theaters. Considering the crap/gem ratio, that risk probability should be less than 5%. Also, you should always exercise some restraint in reading synopses of good movies.

To know which movie is good, check out the reasonably reliable Rotten Tomatoes site.

*Assuming you want to see around 50 movies a year, most of which are crap.