Herbert Lom really makes this movie.
Naturally, it would be great with MacLaine and Caine alone, but Lom's presence really elevates the film. I love that the real character is a lot smarter and more suspicious than his imagined persona is.
Lom was relegated to so many villain roles. Even his (IMO) greatest character, Dreyfus in the Pink Panther series, was a villain for the first few films. It was nice to see that this film, (Like Dreyfus) gave him a chance to really shine.
I love to love my Lisa.