If you want to stream 'The Longest Ride' legally, there are a bunch of reliable routes depending on how you prefer to watch movies.
Personally, I usually start with the big digital storefronts: Amazon Prime Video (rent or buy), Apple TV/iTunes, Google Play/YouTube Movies, Vudu, and the Microsoft Store commonly carry the film for rental or purchase. Rentals usually let you stream for 48 hours
After You start watching, while purchases add it to your library indefinitely. I pay attention to resolution options too — some stores offer HD or 4K, if you care about picture quality.
If you're into subscription services, the availability can hop between platforms and regions; sometimes 'The Longest Ride' turns up on Netflix, Hulu, or other streaming services for limited windows. I like to check an aggregator like JustWatch or Reelgood (set to your country) to see current legal options instantly. There are also public
library apps like Hoopla or Kanopy that sometimes carry mainstream films if your library participates. Personally, renting through a storefront when I just want a one-off cozy movie night works best for me.