Frequencies, also known as OXV: The Manual, is a 2013 independent British science fiction romance, thriller film written and directed by Darren Paul Fisher.

[2] Daniel Gold of The New York Times wrote, "While the detached, deadpan tone and occasionally stilted acting might leave some viewers flat, there’s no doubting the fierce intelligence behind this admirable puzzle box of a movie.

[4] MaryAnn Johanson of Flick Filosopher praised the film for its "incredibly ambitious and profoundly provocative science fiction drama about ideas that require no FX to sell them".

[5] John DeFore of The Hollywood Reporter wrote, "Though the explanations Fisher comes up with for his sci-fi contrivances may not be fully satisfying in the end, the conceits themselves offer much to play with, bringing the film into that pleasing area where an imaginary reality has interesting things to say about our own.

"[6] Richard Whittaker of The Austin Chronicle wrote, "What raises Fisher's script to the upper echelons of the current wave of intellectually challenging indie sci-fi ... is that it truly weaves its concept into its nature.

"[7] Kurt Halfyard of Twitch Film wrote that it "is chock-a-block full of knowledge, destiny and imagination, but suffers a bit from a lack of heart and soul.