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The Sundance Institute's summer outdoor film series turns 20 this year, with a slate of fun movies at Red Butte Garden in Salt Lake City and Park City's City Park — with a screening in Ogden and a special event at Kamas' DeJoria Center honoring the movie that gave the institute its name.

All screenings start at dusk (around 9 p.m.), with gates opening and events starting at 7:30 p.m. Admission is free. Picnic baskets, blankets and low-back lawn chairs are recommended.

Here's the line-up for this year's series:

• Wednesday, July 5, Red Butte Garden • "Napoleon Dynamite" (2004), Utah director Jared Hess' comedy about an Idaho dork (Jon Heder) doing whatever he feels like, gosh! A dance contest and a costume show are scheduled.

• Friday, July 7, City Park • "Riding Giants" (2004), director Stacy Peralta's documentary of big-wave surfers. A beach party and tarp surfing will precede the movie.

• Thursday, July 13, DeJoria Center • "Butch Cassidy and the Sundance Kid" (1969), the classic western — filmed party in Utah — about two outlaws (Paul Newman and Robert Redford) and the woman they love (Katharine Ross). The country band Ghostowne will perform a concert before the movie, starting at 6 p.m.

• Monday, July 17, Ogden City Amphitheatre • "Shaun the Sheep Movie" (2015), the animated adventure of a determined sheep leading his flock into the city to find their lost farmer.

• Friday, July 21, City Park • "Chasing Coral" (2017), filmmaker Jeff Orlowski's documentary that captures the deteriorating state of the ocean's coral reefs. A discussion of sustainability programs in Park City precedes the film.

• Wednesday, July 26, Red Butte Garden • "Sing Street" (2016), filmmaker John Carney's follow-up to "Once," following a teen (Ferdia Walsh-Peelo) in '80s Dublin starting a band so he can impress a girl (Lucy Boynton). Preceded by an '80s-themed lip-sync contest.

Friday, Aug. 4, City Park • "Walking Out" (2017), by filmmaking brothers Alex and Andrew Smith, a harrowing drama about a teen (Josh Wiggins) and his father (Matt Bomer), whose hunting trip in the snowy Montana Rockies turns into a fight for survival. Presented as part of the 2017 Kimball Arts Festival.

Wednesday, Aug. 9, Red Butte Garden • "Hunt for the Wilderpeople" (2016), by New Zealand filmmaker Taika Waititi ("Thor: Ragnarok"), in which a city kid (Julian Dennison) and his crotchety foster uncle (Sam Neill) take to the deep woods to avoid the law.

Wednesday, Aug. 23, Red Butte Garden • "Meru" (2015), directed by Jimmy Chin and Elizabeth Chair Vasarhelyi, a gorgeously photographed documentary detailing an effort by three climbers (including Chin) to scale one of the toughest peaks in the Himalayas: The Shark's Fin on Mount Meru.

Wednesday, Aug. 30, Red Butte Garden • The Utah Community Choice Film, to be selected by the public (via an online vote). The titles to choose from, all of which played at the 1997 Sundance Film Festival, are (in alphabetical order): "Chasing Amy," "Fast, Cheap and Out of Control," "The Full Monty," "Lost Highway," "Prefontaine," "SubUrbia" and "Ulee's Gold."