Question: Who was the director of a 2015 independent drama produced by No Trace Camping?
Context: Room is a 2015 independent drama film directed by Lenny Abrahamson and written by Emma Donoghue, based on her novel of the same name.  It stars Brie Larson as a woman who has been held captive for seven years, and whose 5-year-old son (Jacob Tremblay) was born in captivity.  Their escape allows the boy to experience the outside world for the first time.  The film also stars Joan Allen, Sean Bridgers, and William H. Macy. Perfect Hunch of an Agoraphobe is a 2015 independent British drama and mystery film based in a single location.  It is directed by Erwin Jones, co-written by Erwin Jones and Michael Reynolds and stars Supraneeti Hammacott and Pao-Chang Tsai. They Look Like People is a 2015 independent psychological thriller film that was shot, edited, written, produced, and directed by Perry Blackshear and marks his feature film directorial debut.  The movie had its world premiere on January 25, 2015 at the Slamdance Film Festival where it won a special jury award.  It stars MacLeod Andrews as a man who believes that humanity is being secretly taken over by evil creatures. No Trace Camping is a Canadian–American independent feature film and television financier and production company based in Toronto and Los Angeles.  Its principals are Jesse Shapira, David Gross and Jeff Arkuss.  Founded in 2008, the company produced the films "Goon", "The F Word" (aka "What If") and "Room", as well as "". Cheliceratichnus, meaning trace of a chelicerate arthropod, is an ichnogenus erected by Dalman and Lucas (2015) for a body imprint discovered in the Lower Jurassic East Berlin Formation of Holyoke, Massachusetts.  The specimen is now housed at the Springfield Science Museum, which is one of multiple museums on the Quadrangle (Springfield, Massachusetts).  Considering that only a single specimen was found, the ichnogenus is monospecific, with the species name "lockleyi" honoring paleontologist and ichnologist Martin Lockley.  In trace fossil classification schemes based on behavior, the body imprint is considered a cubichnion, or resting trace.  "Cheliceratichnus lockleyi" exhibits the tagma characteristic of arthropods, with the trace divided into anterior, central, and posterior regions.  Dalman and Lucas (2015) interpreted these regions as imprints of the chelicerae, prosoma, and opisthosoma, respectively, of a chelicerate arthropod.  Additionally, imprints of the animal's legs and telson were identified.  These authors noted that, in general, the pattern of the trace was similar to the body plan of the Solifugae, or camel spiders, but also noted that the presence of a telson imprint rules out that group because these animals lack telsons.  Consequently, they attributed the trace to a solifuge-like arthropod without being more committal on what made it.  In addition to the a body imprint, the animal produced a trackway, called "Acanthichnus cursorius", leading away from the body imprint, which demonstrates that the animal was alive at the time its body imprinted the sediment. Anesthesia is a 2015 independent drama film written, produced and directed by Tim Blake Nelson.  Nelson stars in the film with Sam Waterston, Kristen Stewart, Glenn Close, Gretchen Mol, and Corey Stoll.  The film premiered at the Tribeca Film Festival on April 22, 2015.  The film was released in a limited release and through video on demand on January 8, 2016 by IFC Films. Hogtown is a multi-racial, multilingual "period-less" 2015 independent film.  Set against the backdrop of the 1919 Chicago race riots, the story revolves around the mysterious disappearance of a millionaire theater owner during a snowstorm.  Bill Stamets of the "Chicago Sun-Times" acknowledged "Hogtown" as "the most original film made in Chicago about Chicago to date".  It was named one of the 10 Best Films of 2016 by Ben Kenigsberg, who reviewed the film for The New York Times, and JR Jones of "The Chicago Reader" named it the best film about Chicago and the best film made in Chicago, "period," for 2015.  The film won Best Picture awards at the 30th Black International Cinema Berlin, the 2015 International Black Film Festival (Nashville), the 2015 Los Angeles Black Film Festival, and the 2015 Independent Film Playoff (Los Angeles).  It is the second of three films in an unnamed trilogy, following the 2010 film "Chicago Heights".  The third film, "Sister Carrie", is in development. The Collaborators is an 2015 independent British crime drama feature film directed by Andrew Smith and Dan Ollerhead.  It was written by Svengali director John Hardwick. David Gross is a Canadian film producer who has served as a key member in the company No Trace Camping, and as president of David Gross Productions Inc., based in Ontario. Prego is a 2015 independent short comedy film directed, written and produced by Usher Morgan, with the help of Seinfeld writer Andy Cowan - the film was released to the internet on December 21, 2015 after a 9 months festival run.  The film stars Katie Vincent, Taso Mikroulis, Rachel Jayne, J.W. Harvey and Marah Vanbeekom.
Answer: Lenny Abrahamson