Continuity mistake: When Dr. Jekyll sits down to try his formula for the first time, he removes his ring from the ring finger of his right hand and puts it on the table next to him. After drinking the formula, as his transformation into Hyde starts, his ring is back on his ring finger.
Jekyll & Hyde (1990)
1 mistake
Directed by: David Wickes
Starring: Michael Caine, Cheryl Ladd, Joss Ackland, Ronald Pickup
Trivia: Even though Lionel Jeffries plays Michael Caine's father, he was only 7 years his senior.