I couldn't give it 5 stars as alas it does not age well.
But its an amusing romp for 100mins and there is a bit of a budget up there on the screen.
Michael Crawford brings the humour and an appalling American accent and a preposterous liaison with the gorgeous former Bond girl Barbara Carrera. It's a fun chase movie essentially with car chases and a climatic speedboat chase with lasers.
It's littered with the usual Q gadgets from Bond and you even get a few brief scenes from Oliver Reed and somd pretty good practical stunts. It is certainly watchable, but do excuse the dodgy green screen overtaken even by the effects from the Superman movies.
Agree with the previous reviewer this movie hasn't aged well..... I really wanted to like it. Its clear that from the stunts and locations that this was an expensive movie to make. I wish they hadn't filmed it in video though like a lot of movies filmed in the 80s were the quality and enjoyment is really reduced by this. I agree with the comments of the previous reviewer about the casting, dialogue etc... Ultimately I feel this film was badly executed and didn't reach it's potential. If made again today would probably be much better.