The comedy “Bottoms” will open the 2023 CinemaQ Film Festival in Denver in 2023. ( Orion Pictures/Brownstone Productions) Q marks the spot Thursday-Sunday. Founded in 2009 “to celebrate queer voices, queer visions, and queer visibility” on screen, the four-day CinemaQ Film Festival returns to the Sie FilmCenter on Aug. 10-13, showcasing “the best in new and classic LGBTQ+ cinema from around the world.” Things kick off Thursday with an opening night party and the presentation of “Bottoms,” a comedy about two queer high school girls who start a fight club for cheerleaders.