I have seen the movie by favorable online reviews... movie is mind blowing...first 30 minutes are slow and boring but after that it's really fantastic experience... film is similar to Hollywood movie..but written and directed beautiful to indian audiance..there are very few science fiction flims in tamil cinema which is both intresting and mind bending...this film is very engaging towards the end.. you can't predict what is next in movie...even complex science theory has explained very well in end... actors has done decent job... overall well satisfied movie for time loop lover's...you can't miss these one.