Actually I have but I don't count it because it was much too tame and I wasn't required to row at all. It was on the Colorado River BUT NOT the big rapid locations.
If you're ever in Moab, Utah I recommend their rafting trip. (NOT white water).... it's perfectly calm and smooth. So why do I recommend it? Because you travel past MANY old movie locations, most now abandoned. Forts, villages, towns, you name it. If you have a knowledgeable guide they'll be able to tell you which movies were filmed at each of them. Very interesting. - JamesJM
