In my opinion, “Five Feet Apart.” is such a good movie. You have to see this movie at least once in your life. It's about two people who have an illness, but slowly fall in love with each other.
If you're searching for deep movies, I'd recommend you to watch David Lynch's twisty neo-noir "Mulholland Drive". Without a doubt, ending shall have you scratching your head.
Eyes wide shut,event horizon,at the mouth of madness,Holy mountain,el topo,memento,fight club,salo,long legs,un chien andalou,100 years of solitude.bug,the number 23,metropolis etc etc