Complex sentence: Despite all of this, Dalton was still contracted to do three Bond movies, the pre-production of his third film began in May 1990, in order to be released in late 1991.
Split into simpler sentences: Despite all of this, Dalton was still contracted to do another Bond movie as part of his thre--picture deal. Official pre-production of his third film began in May 1990, in order to be released in late 1991.