All of the The Trip Trilogy’s Celebrity Impressions, Ranked – Slate Magazine (blog)

If Coogan and Brydon are the Da Vinci of pretending to be famous people, then this is their Sistine Chapel. They bust out the Michael Caine at least once in each movie, forever refining the tiniest flourishes of the Cockney dialect to convey the actor’s working-class, street-bred background. The two men aren’t satisfied with merely aping Caine’s sound, either. They’ve got to note the evolution of his voice down an octave over the years, trace it back to a history of cigars and brandy, make the crucial distinction between Caine at rest and Caine in emotional mode. It’s a surprisingly thought-through bit, opened by Brydon taking umbrage at Coogan’s suggestion that a Caine impression is as simple as throwing on an East London steel-and-gravel-style of speech. Some may consider it to be a low form of humor, but a professional-level impersonation depends on attention to detail, specificity, and a physical elasticity that would make Jim Carrey jealous. Maybe it’s a dumb one, but hey, it’s an art form all the same.