1 thing never explored in the series which the film did very well
Cole never questions his sanity in the series, he always seems on-point, focused and assured even after his jumps
I remember in the film there was a part where Bruce Willis (as Cole) quite excellently goes through a phase of believing he truly could be insane, he is in the mental ward and manages to be convinced, and convinces himself, that all the time-travel stuff is simply him just being a psycho
they should have done likewise in the first Season of this show, too bad they didn't it really would have added to the great 12 Monkeys