I really wonder what Frank could have done with the Dirty Harry character. The film, however, would have been quite different not only without Clint in the lead role, but under the direction of Irvin Kershner, not Don Siegel.
"Too violent" ... For Frank at the time, or just in general? Frank would also have been playing a detective for the fourth time in as many years and if it wasn't quite as gritty as Dirty Harry, The Detective pulled few punches. That Bullit and Dirty Harry supeseded it somewhat is quite a pity and I do wish that Frank had acted in more films during the '70s because he had so much to offer as an actor.
Contract on Cherry St. was ace, though. It NEEDS a DVD release badly!!!