The Trip is an unusual concept for a film: two British comedians, playing fictionalised versions of themselves, go on a road trip together to visit some fancy British restaurants in the North of England. The original plan was that Steve Coogan would have taken his girlfriend, and so there’s much discomfort to be had in watching them interact.
If you enjoy British comedians mercilessly teasing each other, or generally like the humour of Coogan or Rob Brydon, then it’s an enjoyable watch. Worth it for the impressions (of varying quality throughout).