Complex sentence: The film was selected as the opening film for the 1997 Cannes Film Festival and became a major box office success, grossing over US $263 million, almost three times its budget of US $90 million.
Split into simpler sentences: The film was selected as the opening film for the 1997 Cannes Film Festival. It went on to become a major box office success, grossing over US $263 million, almost three times its budget of US $90 million.