If someone asks you "Do you like Indian movie?", I think you should answer "Yes I do. But I HAVE watchED only some of them." Indeed, watching them has had some consequences on your present life, since you're still remembering them. It is not a simply action that you did in your past, such as "Yesterday, I ate a sandwich. Then..". (Ok, this example is quite bad but its was the only one that I thought about..).
Nonetheless, I am not TOTALLY sure, cause I'm French...but let's say I'm quite sure of it (I said QUITE..!!)
Does this answer suit you?
Buona giornata !