They usually are good because of a great ending so it's better just keep that ending... they try to better but then do too much or miss completely the point
A good movie getting a bad sequel isn't ideal, but it tends to be the norm. That's why we're surprised when see sequels such as The Empire Strikes Back, The Wrath of Khan, X-Men United, and The Dark Knight.
They usually are good because of a great ending so it's better just keep that ending... they try to better but then do too much or miss completely the point
A good movie getting a bad sequel isn't ideal, but it tends to be the norm. That's why we're surprised when see sequels such as The Empire Strikes Back, The Wrath of Khan, X-Men United, and The Dark Knight.