In the late 1970s, Congress amended the law to allow authors to grab back rights from studios after waiting a few decades. Until now, the termination provision has largely been exploited by musicians, not screenwriters. But records show a flurry of termination notices in the past year — under law, they can come 35 years after publication — which threatens to unsettle who owns the ability to make sequels and reboots of iconic films from the mid- to late-’80s.
Source: Real-Life ‘Terminator’: Major Studios Face Sweeping Loss of Iconic ’80s Film Franchise Rights