New documentary "Untying the Knot" tells Rumana Manzur's story and examines intimate partner abuse; It's been more than a year since pot went legal in Canada, but it's been anything but a smooth ride for some hopeful pot shop owners, especially in Ontario; Exploring the history and mythology of Sasquatches with author John Zada; Iran faces mounting protests over sky-high fuel prices; and the wonders of Wild Skating in Alberta.