The Hamill Hypothesis

The Hamill Hypothesis is the theory that Bigger Luke can be best explained by the existence of a slightly larger Mark Hamill look-alike who was used in many scenes of the original Star Wars Trilogy. The proposed reason for this is still, to this day, up to speculation.


There are many theories as to why a slightly larger Mark Hamill look-alike was used in the original Star Wars trilogy.

Mark Hamill's Car Accident

The most popular theory is that the shots featuring Bigger Luke were shot after Mark Hamill's car accident on January 11th, 1977, which occurred before A New Hope had finished filming. It is believed that the previously unshot scenes were filmed with the aforementioned taller Mark Hamill look-alike, and the official story that it was merely landspeeder pickup shots that featured a double are untrue. Why Lucasfilm would lie is to this day unknown, but speculation abounds.

However, a criticism of this otherwise common theory is that, if this is indeed the much sought out explanation for the Bigger Luke phenomenon, then the appearances of Bigger Luke in both the The Empire Strikes Back and Return of the Jedi are not accounted for, as by the time The Empire Strikes Back was filmed, Mark Hamill had already recovered. In fact scars from the accident were featured in the film, and explained as wounds from the wampa attack.

There exists a theory that has grown more popular in recent years known as the Multi-Luke Hypothesis that addresses this issue. The Multi-Luke Hypothesis states that all, or perhaps most, instances of Bigger Luke in a A New Hope can be chalked up to the aforementioned slightly larger look-alike used to shoot some scenes post-January 11th, 1977, however instances of Bigger Luke in The Empire Strikes Back and Return of the Jedi have different causes. When the theories for the latter two fall into the realm of the Canon Luke Hypothesis, that is when there is believed to be an in-universe explanation, the theory is generally called the Hamill-Canon Hypothesis, or HAMCAN, which is widely considered a sub-theory of the Multi-Luke Hypothesis, and is indeed the most popular sub-theory to this day.

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