Back in the hoary days of 1997, an ad appeared in the classifieds section of Backwoods Home Magazine calling for a partner to accompany the advertiser in a trip through time. The respondent was urged to bring their own weapons and that their safety was not guaranteed. The ad caused a minor storm, until it was eventually revealed as a joke written as filler by the senior editor. Independent filmmakers Colin Trevorrow and Derek Connolly ran with this old nugget of modern folklore, and earlier this year released to critical acclaim their clever little film Safety Not Guaranteed. The film deserves a wide audience; just don’t expect machine-guns versus dinosaurs and you’ll be fine.