I'm unaware if the Prince Valiant stories produced for Dell Comics during the 1950's in the wake of the movie adaptation of Hal Foster's classic comic strip have ever been collect, but seeing some of Bob Fujitani's artwork on this project, they certainly should be. He and Paul S. Newman concocted stories adapting and extending the story of the film. The striking image of Val above by Fujitani served as the back cover of Four Color Comics #719 in the middle of the run. Below is a gallery of the striking and memorable covers produced from 1954 to 1958 for this seven issue series.
Here is a link to the story "The Island of Thunder" from the last Dell issue by Newman and Fujitani. Enjoy!