What are some movies that actually tackle Time Travel well?

I feel like every time a movie (or t.v.) has time travel in it, it always creates plot holes. It appears that writers try and bend the rules for how time travel works in their universe, but can never stick to their own rules.Why can't anyone write an air-tight time travel story? Why do movies keep tackling the subject, but fail on their follow through.Now-a-days with social media I feel like writers are answering questions after the fact to explain perceived plot holes away (Avenger's End Game). Even though I appreciate this, it's still frustrating as a viewer expecting a movie to tell a complete air-tight story.Does anyone have an examples of time travel done well? I'm not necessarily talking about applying the concept to science. If a movie has its own rules of how time travel works, and they follow those rules, then that'd be a good example. via /r/movies https://ift.tt/35mD58v