Imagine being in a crowd of hundreds who are talking about the same subject in their conversation. What if it were a movie that almost 99.1% of the crowd had already seen and you're the odd one out. Seeing bits of it yet you haven't seen it full does not count. So then you get time off to go see that movie so you're not going to fit in with the circle but other circles including film and whatsawhat. But you got the choice from your reaction to that movie: be with or get out of the circle. That's how I feel about seeing The Lion King in 3D at theatres for the first time ever in my life.
I assume that some people have not seen The Dark Knight and you don't really need to see Batman Begins to start going along with Batman. This is my observation when there are people that still haven't seen it. When you complain that one haven't seen the movie that you and everybody had already seen, two excuses to persuade him to see it would be how good it is and how much money it made at the box office. It suits so well for The Lion King. It made $800 million (including the re-release) in revenue and won two Oscars. It was released when kids aren't born enough to watch and understand Pulp Fiction or craves at the life of Forrest Gump while not realising the redemption at Shawshank Prison. It was released in the year when cinema was redefined.