'The movie was released two year later." - a bald statement of fact. It sounds like the delay was expected; the structure's the same as if it was released a week later. If you add a 'finally' after 'was' it's OK, or:
The movie wasn't released until two years later
It would be two more years before the movie was released/saw the light of day/appeared on the big screen/appeared in theatres[usually, cinemas in GBEng]/was given a release, etc.
PS: if you are using GBEng write 'film' instead of 'movie'; although we often say 'movie' if we are talking about mainstream US films, I don't think, eg, Eat Drink Man Woman - to reference an earlier thread of yours - would be considered a movie. In fact, maybe Americans are more inclined to say 'film' when talking about foreign language films but I couldn't be sure - did Tarkovsky make movies, anybody?
Student or Learner