There's Going to Be a Party (1960)

The Radar read

A quieter title still finding its audience, though the rating rests on a thin sample, so treat it as provisional.

Synopsis

FBI agent John Lewis travels in Europe, from Paris to Lisbon, trying to locate a disappeared fellow secret-agent, Mark Lemoine. Soon he has trouble with a violant gang, and is involved with a young French reporter, Michèle Laurent. Finally, the chief of the Secret Service tells Lewis that Lemoine never existed. Instead of ending his mission there, the real trouble starts.

Synopsis and metadata sourced from The Movie Database (TMDB).

Radar blends quality, momentum and freshness into one “what to watch now” number — so a great older film can sit lower than a rising new release. The Quality signal above is the time-neutral rating, which is why an acclaimed classic keeps a high quality score even when its Radar number is lower. Radar outputs are editorial algorithmic recommendations, not objective facts, and may change as signals update. A Radar score is not the same as a TMDB, IMDb or critic rating. How scoring works (v3.0).