Be nice to your neighbors, you never want to end up in a feud. From Hatfield and McCoy's to Karen and Kyle and every other lovely person you could meet, it's best to make cookies, not war.

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HBO is getting back into the mockumentary game with the upcoming movie 7 Days in Hell starring Kit Harrington and Andy Samberg as two rival tennis pros.

The minute-long trailer only gives you a taste of the tournament to come, but it at least leaves us comfortable in the knowledge that Will Forte is involved. We can all sleep easy after that.

This marks a presumptive comedic turn for Harrington, who has mostly stayed on the dour side of things as Jon Snow on Game of Thrones. Although, he has shown that he can be pretty funny if given the chance.