Ignore the 1-star review. Although it's now 2021 (Harry Reid retired in 2015) and many states have passed legislation as well as Congress, the patent scam continues. The one-star reviewer sounds to me like the patent troll lawyer interviewed toward the end of the film who demanded "names and addresses" of any business or business owner who was driven out of business, completely ignoring the NDA that they are almost always forced to sign barring them from talking about the terms at all.
The fact of the matter is that in East Texas at the time of filming this movie, there were two father-son teams where the fathers were judges and the sons were lawyers who brought patent infringement suits for ridiculous patents held by themselves in layers of shell companies ostensibly located in vacant office buildings just steps from the courthouse. This is corruption, American style. Period. It's well cloaked in the appearance of legal legitimacy, but it's corruption nonetheless.
One-star reviewer attempts to differentiate between a patent being filed initially in 2001 vs. 2010 on a METHOD, not a technology. This person misses the point entirely, and likely purposely so. The patent in question was not for a device or technology but a method and vague idea of a phone that could also send and display video. This was already being conceived by numerous companies that would actually end up bringing the technology to the public, but the patent was held by a non-practicing entity, some rando dude in Japan for the express purpose of making money by suing companies for patent infringement.
One-star reviewer clearly has a vested interest in this topic and likely a conflicted one at that, given that there are 9 more stars with which to provide a rating. One-star smacks of an attempt to artificially drive down the overall rating rather than a good faith review with legitimate criticisms.
Although this film is now almost 4 years old, it is recommended viewing for those wishing to learn how corruption not only works, but is legitimized in the USA. 9/10 for an excellent effort by a first-time filmmaker.