An early production effort by the Salkind brothers (Superman) this uneasy mixture of neo-realism and and standard actioner was plagued with production problems. Location filming on Majorca dragged on for an incredible seven months. Rushes had to be sent to the mainland for processing so it was impossible to view progress on a daily basis. Some of the post-synching in outdoors scenes is muffled and doesn't seem to match the actors voices in studio sequences.The photography is also uneven, even though the cinematographer Andre Thomas was married to leading lady Patricia Roc some of her close ups are less than flattering. The climax of the film set on two boats is so badly edited that you have a job working out what is going on. George Sanders is completely miscast in an Errol Flynn role whilst poor Pat Roc struggles with an unevenly written part as a Swedish refugee, seeming constantly on the verge of hysterics for no good reason. The technical shortcomings sink a potentially enjoyable film