iMovie '09 on a PowerBook G4

I started with this Google result to install iMovie '09 on a PowerBook G4, but I had a few problems as written and came up with a similar way that worked for me. I copied iMovie.pkg to my hard drive, then "Show Package Contents" to get to Distribution.dist that I edited with TextEdit. Near the top, under Installer logic, I made this function replacement:

function installationCheck()

{

return true;

}

The original function is longer, but it keeps me from installing iMovie directly, which is all I wanted to do. Then I went back to the original hint and ran defaults write NSGlobalDomain allowG4Launch -bool YES to finish the job. An awful lot of bounces in the Dock (old, old laptop), but it launches!