The Greenbacks present a screening of Where The Yellowstone Goes, a documentary from award-winning filmmaker Hunter Weeks, at the Denver Film Center on Tuesday, June 12 at 7 p.m. Click here to purchase tickets. Where The Yellowstone Goes, which had its debut at the Newport Beach Film Festival, follows a small crew down the Yellowstone from Gardiner, Mont., to the confluence of the Missouri River at Fort Buford, N.D., a nearly 600-mile journey.

The Yellowstone is the longest un-dammed river in the lower 48 states and one of the world's most renowned trout angling destinations.

The trip down the river is led by fourth-generation Montanan and fly fishing guide Robert Hawkins. His crew explores fly-fishing, conservation, and the type of clarity that can only be found upon slowing down to meet and gain insight from the people who live along the river.

In July of 2011, an ExxonMobil pipeline running beneath the river ruptured, spilling an estimated 63,000 gallons of oil into the river. The film captures some of the clean-up effort less than two months after the spill.

“People are becoming more aware of how important our nation’s waterways are,” said Weeks, who will attend the screening and conduct a Q&A session afterward. “I think this film will really resonate and help people understand that they can do something. This isn’t just about fly fishing and conservation, this is a real story of life.”

Advance tickets for the June 12 showing are $12 ($10 for Denver Film Society members) and $15 at the door. Click here to purchase tickets. (The film runs 88 minutes.)

Learn more at Where the Yellowstone Goes.

For more information, or to view the trailer, go to www.WhereTheYellowstoneGoes.com.