Turned out great

Rating: 10/10 (26 July 2006)

Back to the future part II had some setbacks but it still turned out be be awesome and my favorite of the series at that.
Those setbacks are Martys girlfriend Jennifer is replaced by a new actress.(the original actress left acting for awhile) Crispin Glover doesn't reprise his role as George Mcfly.Crispin Glover wouldn't reprise his role and filed a lawsuit for them trying to replace him so the movie was rewritten. George had to be murdered to write him off.
This movie rocked despite the setbacks. Part 2 picks up where part 1 left off.
They go to the future to prevent a chain reactions of bad events but Biff from the future creates a time paradox. You literally get to re-live part 1 because they go back to 1955 as well.
Some of the things in the future are cool like hover boards, flying cars but some things are really odd. This movie has a cliffhanger ending so I'd also recommend part 3 for a follow up.