[3] His first fully independent choreographed piece was 1958's, Two Brothers, a "powerful narrative of sibling rivalry and violence in an urban setting", and designed by Ralph Koltai.
[4] Morrice, like his contemporary fellow choreographers Kenneth MacMillan and Peter Darrell, was part of the Angry Young Men movement in theatre, that sought to dramatise ordinary life.
Two Brothers was an immediate success, and it was soon televised, giving Morrice a wide British, and was drawing admiration at Jacob's Pillow, the longest running dance festival in the US.
[4] In 1961, he received a Ford Foundation fellowship which enabled Morrice to study with the American dance pioneer Martha Graham for a year,[3] and she was to become a major influence for him, and they formed a lasting and deep friendship.
[4] Marie Rambert persuaded him to take on the role, and he nurtured new choreographers including Ashley Page, Michael Corder,[4] and Richard Alston, all of whom made their debuts on the stage of the Royal Opera House.