iMovie - How to increase length of still image beyond 4secs?

[stringtheorist]

I'm trying to make a movie to accompany an audio file but I just want a still frame of the album artwork. In iMovie I can only set the duration of a still frame to about 4 secs. How do I make this duration match the length of the song?

 

[aristobrat]

Right-click on the still and select "Set Duration"?

 

[stringtheorist]

Right-click on the still and select "Set Duration"?

OK, so I basically just need to keep adding length to each frame until I reach the desired length?