But after a soft $25 million domestic start, now it's up in the air whether this origin tale for Optimus Prime and Megatron will strike a chord with moviegoers who aren't already fans of the '80s franchise.

The Paramount and Hasbro Entertainment movie had been expected to easily top the domestic chart with $30 million or more. Instead, it came in at an estimated $25 million.

Beetlejuice Beetlejuice pulled off a last-minute upset against Transformers One to reign over the domestic box office for another week.