The Butterfly Effect (2004)
This thriller is about a boy who experiences headaches that takes him back in time. He makes certain changes in past life and sees his present life changing according to them.
Interstellar (2014)
If you are a Sci-Fi nerd and would love to see a story of space and time then this is one of the highly recommended movies. The story is about a team of astronauts who travel through a wormhole in search of another habitable planet.
Back to the Future (1985)
This one is a bit old but since we are exploring the concept of time, do add this one to your list. This movie revolves around the story of a boy who uses a time machine to travel through time but faces a hurdle to come back to present.
Primer (2004)
This film explores the complexities of time travel. It is about two friends who use time travel to make money using stock market but end up facing troubles.
About Time (2013)
This film explores romance through time traveling when a boy discovers that his family knows how to travel through time and he finds ways to make changes in his life through this discovery.
Hot Tub Time Machine (2010)
It is a charming, fun, and light-hearted movie about friends who are taken back in time through a hot tub in a resort.
Edge of Tomorrow (2014)
This movie is about an officer who gets demoted and is forced to fight without training which leads to his death. He also takes down an alien with him but that throws him into a time loop in which he experiences the same day again and again.
Source Code (2011)
This movie is about a man who tries to prevent mass murder on a train but ends up living the same scene over and over.