I believe he is looking for the SPORT not just any old rowing (as some posters humorously noted), sculling as its sometimes called.
Otherwise I would mention Sunrise, which has lots of oars to water action but not the sporting version.
There is a rowing plot keyword at IMDb, and from it I found the one that I was thinking of but couldn't remember the name...True Blue.
There are several others you can find that way but most are shorts, TV films, or documentaries.
Some of the non-doc features - Blondie Goes to College (42), All-American Sweetheart (37), The Boy in Blue (86 - the Nic Cage film Robert was thinking of), Brown of Harvard (18), Queen of the Night (2001), Rowing Through (96 - mentioned already), and A Yank at Oxford (38).
There have to be many others since Emporer's Club and Oxford Blues (another I also remembered) don't have the genre/plot keyword for rowing attached to them (which is rather odd considering the plot for Oxford Blues which even has rowing listed in the plot summary at IMDb).
I guess I should have been more clear in my post. I meant Rowing as in the sport also known as sculling and sweeping. It was around 3 in the morning when I started this thread so cut me some slack.