HBO released a teaser for a tennis mockumentary starring Andy Samberg and Kit Harrington.

The movie, 7 Days in Hell, premieres July 11 and is about a very, very long tennis match. While watching a never-ending sporting event in real life sounds like a true nightmare, I'm pretty intrigued by the actors' vibes:

While Samberg doesn't appear to be straying too far from his "Dick In A Box" ensemble...

(via hulu.tumblr.com)

...Kit Harrington is definitely leaving his Game of Thrones roots behind.

And I know this doesn't really make sense, but I have to say, the appearance of Serena Williams in the trailer somehow makes me feel like this is a "legitimate" fake tennis documentary.

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(via HBO)

Sources: HBO | EW