I doubt it'll come as any surprise that is this film isn't really that funny. While the film sets up with an interesting premise, and an occasionally funny one if I may add, but then manages to go downhill, taking all the jokes along with it. While Cameron Diaz and Jason Segel have great chemistry, and their frantic behaviour brings a few laughs in the first act, not even they can save this film from its ultimately boring, uneven and unrealistic premise. I know, I know. Comedy isn't a genre that is known for being overly realistic, but there are moments in here that are just downright dumb and over the top. These moments take me out of the already sloppy film and set me free in a world of utter confusion.
The film's runtime is a brief 90 minutes, but it's almost a half an hour too long. Sex Tape is a film that would work much better as a crisp, twenty to thirty minute short film. This time frame is about the time when my brain begun to get tired of the movie, and it's also the time when I begun to start checking my watch for the first of many times. The most ironic aspect of this film is that it feels three hours, the length of the sex tape filmed in the, um, film.
Sex Tape drags itself along from one scene to another, with little flow in-between. Sex Tape, much like the Transformers series, tries to drag itself from one scenario to another. For the most part, the filmmakers don't even appear to be making an attempt at making a coherent story, but instead are trying to find ways to bring us from one joke to another. To make it worse, the film is predictable. As soon as a scene starts, or a character is introduced or a bit of dialogue is mentioned, I was able to work out how everything goes down. This is with the exception of one scene, a scene which was shown completely differently (and actually funny) in the trailer and a scene which I will not spoil.
To sum up, Sex Tape begins by setting up an interesting, and quite funny premise, but unsurprisingly goes downhill, taking the jokes along with it. The film drags itself along with no flow, it's predictable, dumb and would work better as a short film.