No they are not. You can enjoy a movie on the first watch same as you can enjoy an album on the first listen.
If you need to listen/watch something 10 times to even get to like it you are not begining to understand it. You are forcing yourself to like it.
+1, things can naturally grow on you over time, but by forcing yourself to listen/watch something constantly you're just training yourself to like it, which is pretty dishonest.