The Keymaker while in his prison.

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Being under the fair use the image is used because:

• no free equivalent exists that would effectively illustrate the point
• the image illustrates solely the subject in question
• the image is of low resolution as compared to original screenshot from the film
• the image was not digitally altered and does not misinterpret the original authorship
• the image does not purpose commercial goals

This image is a screenshot from a copyrighted film, and the copyright for it is most likely owned by the studio which produced the film, and possibly also by any actors appearing in the screenshot. It is believed that the use of a limited number of low-resolution screenshots

• for critical commentary and discussion of the film and its contents
• on the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation,
  

qualifies as fair use under the Copyright law of the United States. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content for more information.