Peter Ustinov received an Academy Award nomination for the script that he co-wrote for this film, and it was a nomination well deserved because if not particularly witty or laugh-out-loud funny, the film still has a number of amusing moments and it is a delight to watch. Ustinov is perfect as a charismatic conman, and Maggie Smith is excellent as a ditsy bimbo in a role very atypical for her repertoire. There are also some interestingly edited sequences and great music too. The scams that Ustinov devises are a bit overly complicated, as is the science behind is the hacking that he carries out, but a full understanding of everything that is going on is not required to enjoy the film. It is interesting to watch and often amusing.