The nineteenth-century European art movement that was concerned with the power of the imagination and that greatly valued intense feelings is called:

Romanticism

Explanation:

Romanticism has influenced many pieces of literature, art, poetry, sculpture, criticism and literary criticism in Western culture over most of the period from the late 18th to the mid-19th generation.

Romanticism may be seen as a denial of both the principles of justice, peace, unity, equilibrium, idealization and rationality that typified Classicism in particular and Neoclassicism in particular in the late 18th century.

It was a backlash to some degree against both the Enlightenment, as well as against rationalism and physical materialism in general in the 18th century.