The new Dominic Monaghan film currently shooting is called The Millionaire Tour. Thanks to Dom's costar Jordan Belfi for passing on the information to this site.

The film is directed by Inon Shampanier from his script with Natalie Shampanier. According to IMDB, Shampanier previously wrote and directed the short "8 Ball" and produced two documentaries on Yiddish theater. Other cast members include Rick Gomez, Agnes Bruckner, Ray Wise, and Dave Vescio.

The film, produced by Michael Eisner's Vuguru, a web television/new media production company, may be destined for some kind of  Internet distribution. The Millionaire Tour is Vuguru's first feature.

Here's a plot blurb. SPOILERS

A mysterious cab passenger who is taken hostage must convince the hijackers that he is not the legendary con man they set out to kill. His various attempts to prove his identity only persuade the hijackers of his devious conman trickery. Is it a case of mistaken identity, or a clever act of deception? A series of mind games, confessions and escape ploys will determine who's taking who for a ride...

Curious about the title? Here is an article on Wikipedia which may shed some light.

A partial cast breakdown – bigger spoilers – is here. There are three male leads.