Red (2008)

An older, reclusive man's best friend and inspiration for living is his 14-year-old dog named "Red". When three troublesome teens kill the dog for no good reason, the grieving man sets out for justice and redemption by whatever means available to him.

Red is a drama movie featuring Brian Cox.

Red is currently streaming for free (ad-supported) on Kanopy and it's also available on DIRECTV, Hoopla and TNT.

It is also possible to buy Red on Amazon Video, Apple TV, FlixFling, Google Play Movies, Microsoft Store, Vudu and YouTube.