The festival, to last until August 30, will feature a number of feature-length, short and documentary films as well as an event on contemporary Portuguese film.
The festival will include the European premieres of "The Living and the Dead" by British director Simon Rumley, "A Prairie Home Companion" by Robert Altman, and "Lady in the Water" by M. Night Shyamalan.
The jury of the Libertas Film Festival is presided by Hollywood producer Michael Ohoven.