What starts as a simple lovers' road-trip doesn't take long to degenerate into chaos, with the couple pursued by Charlie's bumbling US Marshall supervisor (Tom Arnold), Annie's jealous ex (Michael Rosenbaum), a couple of dim-witted cops, and a few of Charlie's unsavoury former colleagues, led by a dreadlocked Bradley Cooper. Everybody it seems, either wants to save or eliminate Charlie.
Shepard and Bell sizzle on screen together. Even as their relationship starts to crumble - it turns out Charlie hasn't been completely honest as to why he was in the Witness Protection Programme - they are still the most sane and likeable characters on display.
Bradley Cooper doesn't do so well. His white boy from the ghetto act, with his dreadlocks and yellow tinted glasses, is amusing but forced and a bit left-field.
Cooper looks like he's auditioning for a Tarantino film, while everyone else has adopted a slapstick approach and keeps it to relatively simple gags, like Arnold's clumsy cop who can't draw his gun without accidentally firing it,
Those with a passion for cars - in particular anyone fond of American classics - will enjoy this endless car chase, but the rest of us will wonder where the witty romance went.
Stars: 3/5
Cast: Dax Shepard, Kristen Bell, Bradley Cooper
Directors: David Palmer and Dax Shepard
Running Time: 100 mins
Rating: M (Contains violence, sexual references and offensive language)
Verdict: A hit and miss rom-com.
-TimeOut