The play ran for a record-breaking five weeks at the Lyric, before being retitled Son of Oblomov and moved to the Comedy Theatre in London's West End, with Dunlop once again the producer.

His productions for them included The Taming of the Shrew (1970); The Comedy of Errors (1971); Genet's The Maids, Deathwatch and The Alchemist (1972); an acclaimed revival of Rattigan's French Without Tears, and his own play Scapino (1974); and Macbeth (1975).

The original, high camp production of Bible One: Joseph and the Amazing Technicolour Dreamcoat, starring Gary Bond, was created by him with the Young Vic company at the Edinburgh Festival in 1972, and transferred to the Round House in November 1972.

He has staged opera, including Carmen at the Royal Albert Hall, and in the summer of 2004 Jim Dale and William Atherton starred in the premiere of his adaptation of Kathrine Kressman Taylor's short epistolary novel Address Unknown at the Promenade Theatre on Broadway, again working with Steven Sendor as his producer.

In 2007 Dunlop directed longtime friend Rosemary Harris in Éric-Emmanuel Schmitt's one-act play "Oscar and the Pink Lady" at San Diego's Old Globe Theatre.

[7] National Life Stories conducted an interview (C1173/20) with Dunlop on his memories of Richard Negri in 2007 for its An Oral History of Theatre Design collection held by the British Library.