I can't count the number of memories I have associated with the Yellowstone River. From watching a family of otters swimming yards away from a boar grizzly to a white wolf chasing a duck to my son in a tree pointing out holding Yellowstone cutthroat trout in the river for my father-in-law to cast his fly toward. And that is just inside Yellowstone National Park. I've long wanted to explore the river once it leaves the park. Now I have a chance to do so without leaving Salt Lake City."Where the Yellowstone Goes" is an award-winning documentary tracking people during a 30-day fly fishing float from Gardiner, Mt., to the Yellowstone's confluence with the Missouri River.The Yellowstone is the longest undamned river in the contiguous United States. The film is being shown at Brewvies Cinema Pub April 4 at 7:30 p.m. Advance tickets are available at Western Rivers Flyfisher (1071 E. 900 South) for $10. Tickets are $12 at the door.Twenty percent of proceeds from the showing will benefit the Utah Stream Access Coalition.