Watch South Park: Bigger, Longer & Uncut (1999) HD Full Movie Free on SolarMovie. Watch South Park: Bigger, Longer & Uncut (1999) online free. When Stan Marsh and his friends go see an R-rated movie, they start cursing and their parents think ...When Stan Marsh and his friends go see an R-rated movie, they start cursing and their parents think that Canada is to blame.