You can talk about movies or books in the present tense because if you re-watch a movie or reread a book, the content remains the same. In other words the content of the movie in present time remains the same as when you watched it so you can use present tense.
Generally in most dreams you have the dream only once and when you talk about the dream it occurred in your past, and so you must use past tense.
The only exception to this would be if you have a dream that re-occurs (repeats), in which case you might use past tense to talk about past occurrences and future tense for anticipated future occurrences, but unless you are talking in your sleep while actually having the dream, you won't use present tense.
If there are elements of your dreaming (for example a specific location that repeats in different dreams you have), you might use present tense when talking about that repeating element.