Some days when I got too excited, I dreamed a lot of things that did not really happen during the day.  My dreams are always like movies/novels too...what is weird to me is that I've had the same dream several times.  But I've noticed that if I am too exhausted before going to bed, I tend to sleep very well...although I may still dream a lot, I won't remember any when I wake up.  So another suggestion is that try to do more things and make yourself tired enough to sleep tight  .