It's a low-budget film, and actually, they make the budget go a long way. I liked the story, the acting was fine, and the production design and effects were spot on. I do agree with some reviewers that it could lose 10 minutes near the end. I hope we get to see more from this writer/director.

Whilst there are irrelevant side plots, and some parts are slow, it's pretty well acted, the tension and mystery are built well, the the ending is surprising.

Obviously the science makes no sense, but that's not what stories are for. A good effort.

Plot spoiler for Trekkies.

A group of college kids playing with an algorithm controlling an electronic pulse create a device that opens a wormhole. In a rush for funding, the decide one of them should go through the machine. Ana (Yaiza Figueroa) is selected. However soon things go weird for Ana as her memory keeps failing her.

This is a low budget science fiction film which geeks will hail like "Primer." The big difference between the two films is that this one managed to have a woman in it. The acting was okay, and I pretty much nailed the mystery being a Trekkie, having watched "The Enemy Within." The film has two main issues. One is that any wormhole shuts down as soon as something is placed inside. Having it stay open too long is not an issue. There are other wormhole issues, but I will spare you. The second problem is the title. Technically there is no "anti matter" in the film. A positron is antimatter. A photon is not.

Guide: F-word. brief sex and nudity (Yaiza Figueroa)