Robert also followed up with two sequels in 1989 and 1990.
It comes as Michael opened up about his personal struggles over the past year, which saw him sustain multiple painful injuries and mourn the loss of his mother Phyllis, who passed away in September at age 92.
The actor, who has been battling Parkinson’s disease for more than 30 years, told People magazine that his health problems have gotten worse over the years.
The Back to the Future star underwent risky spinal surgery to remove a tumor on his back and later broke his left arm in 2018.
“It got worse,” Michael told People magazine.
“I broke my cheek, then my hand, then my shoulder, had a replacement shoulder put in and broke my [right] arm, then I broke my elbow. I’m 61 years old, and I feel it a little bit more.”