The reviews lean strongly positive, with thirteen of fourteen critics in favour and none against. Praise clusters on Bruce Robinson’s script, which nearly every critic describes as quotable line by line, and on the performances: Richard E. Grant’s self-pitying Withnail is the most cited, with Richard Griffiths’s Uncle Monty close behind. Most critics also note that the comedy sits on something sadder, a picture of the 1960s ending badly, and treat the mixture of hilarity and melancholy as the point rather than a flaw.
The spread is narrow. The older American reviews are warm but more measured, treating the film as a small, wise footnote to its era rather than a landmark, and IndieWire reads it chiefly as a critique of the counterculture rather than as a comedy. The one real dissent comes from The Independent, which finds the film slight and meandering and is baffled by its cult reputation, though even it admires Grant. Nobody disputes the acting.
