Dave McNary Film ReporterThe Slamdance Film Festival has unveiled its lineup of 25 features along with 107 shorts and episodics for the mostly virtual 27th edition of the festival — a number that equals previous editions of the festival.The opening night film, which will screen at a drive-in in Joshua Tree on Feb. 13, is the world premiere of “No Trace” (Nulle Trace) from Canadian director and screenwriter Simon Lavoie.