Yes, with very few exceptions.
A VPN changes the IP address and encrypts the traffic to grant you access to a streaming service. However, a lot of people are concerned with the legality of using a VPN.
Watching Netflix or another streaming service outside the UK with a VPN is legal unless you are situated in a country such as UAE, China, Iran or Russia, where the use of VPNs has been outlawed.
With some streaming services, such as Netflix, using a VPN could violate their terms and conditions but again that is not against the law. It is unlikely, although not impossible, that a streaming provider could terminate your account for violating terms but we’ve never heard of it happening in real life.