Cursillo is the original three-day movement, and has since been licensed for use by several mainline Christian denominations, some of which have retained the trademarked “Cursillo” name, while others have modified its talks/methods and given it a different name. In the United States, Cursillo is a registered trademark of the National Cursillo Center in Jarrell, Texas.

The Cursillo focuses on showing Christian laypeople how to become effective Christian leaders over the course of a three-day weekend. The weekend includes fifteen talks, called rollos, are given by priests and sometimes by laypeople. The major emphasis of the weekend is to ask participants to take what they have learned back into the world, on what is known as the “fourth day.” The method stresses personal spiritual development, as accelerated by weekly group reunions after the initial weekend.